feat(client): 翻訳をIndexedDBに保存・プッシュ通知を翻訳 (#6396)

* wip

* tabun ok

* better msg

* oops

* fix lint

* Update gulpfile.ts

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

* Update src/client/scripts/set-i18n-contexts.ts

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

* refactor

Co-authored-by: acid-chicken <root@acid-chicken.com>

* ✨

* wip

* fix lint

* たぶんおk

* fix flush

* Translate Notification

* remove console.log

* fix

* add notifications

* remove san

* wip

* ok

* ✌️



* Update src/prelude/array.ts

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

* wip

* i18n refactor

* Update init.ts

* ✌️



Co-authored-by: Acid Chicken (硫酸鶏) <root@acid-chicken.com>
Co-authored-by: syuilo <syuilotan@yahoo.co.jp>