* simplify temporary files for thumbnails

Because only a single file will be written to the directory, creating a
separate directory seems unnecessary. If only a temporary file is created,
the code from `createTemp` can be reused here as well.

* refactor: deduplicate code for temporary files/directories

To follow the DRY principle, the same code should not be duplicated
across different files. Instead an already existing function is used.

Because temporary directories are also create in multiple locations,
a function for this is also newly added to reduce duplication.

* fix: clean up identicon temp files

The temporary files for identicons are not reused and can be deleted
after they are fully read. This condition is met when the stream is closed
and so the file can be cleaned up using the events API of the stream.

* fix: ensure cleanup is called when download fails

* fix: ensure cleanup is called in error conditions

This covers import/export queue jobs and is mostly just wrapping all
code in a try...finally statement where the finally runs the cleanup.

* fix: use correct type instead of `any`

* fix(client): refactor widgets and fix lint issues

* Apply review suggestions from @Johann150

Co-authored-by: Johann150 <johann@qwertqwefsday.eu>

Co-authored-by: Johann150 <johann@qwertqwefsday.eu>

* refactor(client): refactor admin/overview to use Composition API

* fix(client): apply review suggestions

* refactor(client): refactor my-antennas/edit to use Composition API

* fix(client): apply review suggestions

* Unicode 14.0 Emoji

* mfm-js@0.22.0

* CHANGELOG

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

Highlight PRs that edit locales other than the ja-JP one so the author may see and fix it themselves.

Bumps [hosted-git-info](https://github.com/npm/hosted-git-info) from 2.8.8 to 2.8.9.
- [Release notes](https://github.com/npm/hosted-git-info/releases)
- [Changelog](https://github.com/npm/hosted-git-info/blob/v2.8.9/CHANGELOG.md)
- [Commits](https://github.com/npm/hosted-git-info/compare/v2.8.8...v2.8.9

)

---
updated-dependencies:
- dependency-name: hosted-git-info
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Fix #8520
Close #8521

Co-Authored-By: Johann150 <20990607+Johann150@users.noreply.github.com>

* refactor to composition API

* use existing image component

This improves user experience because alt text is displayed correctly.

* fix: correct image src

* fix: defineProps

* fix

* fix spelling

* fix(activitypub): add authorization checks

* add CSS classes for zoom MFM

* limit nesting of x2, x3, x4 MFM

* simplify CSS calculation

Co-authored-by: Acid Chicken (硫酸鶏) <root@acid-chicken.com>

Co-authored-by: Acid Chicken (硫酸鶏) <root@acid-chicken.com>

* ノート詳細で新しいノートの表示が正しくないのを修正する

* ノート詳細から別のノート詳細を表示した時に前後の表示をリセットする

* refactor(client): refactor pleaseLogin to show a sign-in dialog

* Apply review suggestions from @Johann150

Co-authored-by: Johann150 <johann@qwertqwefsday.eu>

Co-authored-by: Johann150 <johann@qwertqwefsday.eu>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

Bumps [copy-props](https://github.com/gulpjs/copy-props) from 2.0.4 to 2.0.5.
- [Release notes](https://github.com/gulpjs/copy-props/releases)
- [Changelog](https://github.com/gulpjs/copy-props/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gulpjs/copy-props/compare/2.0.4...2.0.5

)

---
updated-dependencies:
- dependency-name: copy-props
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [async](https://github.com/caolan/async) from 3.2.1 to 3.2.3.
- [Release notes](https://github.com/caolan/async/releases)
- [Changelog](https://github.com/caolan/async/blob/master/CHANGELOG.md)
- [Commits](https://github.com/caolan/async/compare/v3.2.1...v3.2.3

)

---
updated-dependencies:
- dependency-name: async
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [async](https://github.com/caolan/async) from 3.2.1 to 3.2.3.
- [Release notes](https://github.com/caolan/async/releases)
- [Changelog](https://github.com/caolan/async/blob/master/CHANGELOG.md)
- [Commits](https://github.com/caolan/async/compare/v3.2.1...v3.2.3

)

---
updated-dependencies:
- dependency-name: async
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* enhance: make theme color format uniform

All newly fetched instance theme colors will be uniformely formatted
as hashtag followed by 6 hexadecimal digits.

Colors are checked for validity and invalid colors are not handled.

* better input validation for own theme color

* migration to unify theme color formats

Fixes theme colors of other instances as well as the local instance.

* add changelog entry

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

* fix: Unable to generate video thumbnails

* CHANGELOG

* ノートのインスタンス情報の背景色が反映されないことがあるのを修正する

* ノートのインスタンス情報の文字に縁を付けて見やすくする

* Revert "ノートのインスタンス情報の背景色が反映されないことがあるのを修正する"

This reverts commit de920dfc537d1f2c68804d0d6930520f2b3cbce7.

* ノートのインスタンス情報の文字の影の数を増やしてさらに見やすくする