* enhance(server): Use job queue for account delete

Fix #5336

* ジョブをひとつに

* remove done call

* clean up

* add User.isDeleted

* コミット忘れ

* Update 1629512953000-user-is-deleted.ts

* show dialog

* lint

* Update 1629512953000-user-is-deleted.ts

Fix #7037

cherry picked from https://github.com/kat-atat/misskey/commit/4b2c215e25a0bae47f4375b296d1f5d07a179f88

* accountsストアはindexedDBで保持するように

* fix lint

* fix indexeddb available detection

* remove debugging code

* fix lint

* resolve https://github.com/misskey-dev/misskey/pull/7609/files/ba756204b77ce6e1189b8443e9641f2d02119621#diff-f565878e8202f0037b830c780b7c0932dc1bb5fd3d05ede14d72d10efbc3740c
Firefoxでの動作を改善

* fix lint

* fix lint

* add changelog

Fix #7631

Fix #7620

Resolve #5213

See: https://forum.vuejs.org/t/how-to-avoid-non-function-value-encountered-for-default-slot-warning/107039