Fix #7853

* move truncate function to separate file to reuse it

* truncate image descriptions

* show image description limit in UI

* correctly treat null

Co-authored-by: nullobsi <me@nullob.si>

* make truncate Unicode-aware

The strings that truncate returns should now be valid Unicode.

PostgreSQL also counts Unicode Code Points instead of bytes so this
should be correct.

* move truncate to internal, validate in API

Truncating could also be done in src/services/drive/add-file.ts or
src/services/drive/upload-from-url.ts but those would also affect
local images. But local images should result in a hard error if the
image comment is too long.

* avoid overwriting

Co-authored-by: nullobsi <me@nullob.si>

重いため

* Tune mfmToHtml

* typo

* add

Resolve #7826

* New translations ja-JP.yml (German)

* New translations ja-JP.yml (Esperanto)

* New translations create-plugin.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* packedNotificationSchemaを更新

* read:gallery, write:gallery, read:gallery-likes, write:gallery-likesに翻訳を追加

* fix

* add header, choice, invitation

* test

* fix

* yatta

* remove no longer needed "as PackedUser/PackedNote"

* clean up

* add simple-schema

* fix lint

* define items in full Schema

* revert https://github.com/misskey-dev/misskey/pull/7772#discussion_r706627736

* user packとnote packの型不整合を修正

* add prelude/types.ts

* emoji

* signin

* game

* matching

* fix

* add emoji schema

* add reversiGame

* add reversiMatching

* remove signin schema (use Signin entity)

* add Packed type

* note-reaction

* user

* user-group

* user-list

* note

* app, messaging-message

* notification

* drive-file

* drive-folder

* following

* muting

* blocking

* hashtag

* page

* app (with modifying schema)

* import user?

* channel

* antenna

* clip

* gallery-post

* emoji

* Packed

* reversi-matching

* add changelog

* add changelog

* revert fix

* New translations ja-JP.yml (Korean)

* New translations ja-JP.yml (Chinese Simplified)

* New translations ja-JP.yml (Chinese Simplified)

* New translations apps.md (Chinese Simplified)

* New translations links.md (Chinese Simplified)

* New translations changelog.md (Chinese Simplified)

* New translations ja-JP.yml (Esperanto)

* New translations report-issue.md (Chinese Simplified)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations mfm.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations glossary.md (Esperanto)

* New translations timeline.md (Chinese Simplified)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations mfm.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations mfm.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (German)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations glossary.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations aiscript.md (English)

* New translations ja-JP.yml (Esperanto)

* New translations aiscript.md (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations links.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations note.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations note.md (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (French)

* New translations ja-JP.yml (French)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Korean)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (English)

* New translations faq.md (Korean)

* New translations faq.md (Korean)

* New translations misskey.md (Korean)

* New translations faq.md (Korean)

* New translations disable-timelines.md (Korean)

* New translations disable-timelines.md (Korean)

* New translations disable-timelines.md (Korean)

* New translations aiscript.md (Korean)

* New translations misskey.md (Korean)

* New translations aiscript.md (Korean)

* New translations changelog.md (Korean)

* New translations misskey.md (Korean)

* New translations misskey.md (Korean)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations glossary.md (Esperanto)

* New translations glossary.md (Esperanto)

* New translations glossary.md (Esperanto)

* New translations glossary.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations misskey.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations faq.md (Korean)

* New translations misskey.md (Korean)

* New translations apps.md (Korean)

* New translations faq.md (Korean)

* New translations misskey.md (Korean)

* New translations faq.md (Korean)

* New translations glossary.md (Korean)

* New translations faq.md (Korean)

* New translations glossary.md (Korean)

* New translations glossary.md (Korean)

* New translations glossary.md (Korean)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations create-plugin.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations keyboard-shortcut.md (Esperanto)

* New translations ja-JP.yml (Japanese, Kansai)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Chinese Simplified)

* New translations create-plugin.md (Chinese Simplified)

* New translations develop-bot.md (Chinese Simplified)

* New translations reversi-bot.md (Chinese Simplified)

* New translations ja-JP.yml (Japanese, Kansai)

* New translations reversi-bot.md (Chinese Simplified)

* New translations stream.md (Chinese Simplified)

* New translations ja-JP.yml (German)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations glossary.md (Esperanto)

* New translations glossary.md (Esperanto)

* New translations glossary.md (Esperanto)

* New translations reversi-bot.md (Chinese Simplified)

* New translations develop-bot.md (Chinese Simplified)

* New translations reversi-bot.md (Chinese Simplified)

* New translations reversi-bot.md (Chinese Simplified)

* New translations ja-JP.yml (French)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations troubleshooting.md (Esperanto)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations timeline.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations timeline.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations glossary.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations glossary.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations note.md (Esperanto)

* New translations glossary.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations glossary.md (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations reversi-bot.md (Chinese Simplified)

* New translations reversi-bot.md (Chinese Simplified)

* New translations reversi-bot.md (Chinese Simplified)

* New translations stream.md (Chinese Simplified)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations glossary.md (Korean)

* New translations glossary.md (Korean)

* New translations glossary.md (Korean)

* New translations glossary.md (Korean)

* New translations links.md (Korean)

* New translations links.md (Korean)

* New translations ja-JP.yml (Korean)

Resolve #7756

* Add sparkle mfm animation ✨

* Cleanup sparkle effect

+ spaces -> tabs and other codestyle
+ use proper image
+ listen for resizes
+ use font-size to determine particle size (for fun with x2/3/4 stacking)

動作確認済み
Resolve #7735