Resolve #8150

* fix(client): only allow admins to access /admin/*

* fix(client): Also allow moderators to access admin panel

This reverts commit 94d4f827.

Fix #8363

* Fix avatar/banner proxy

Co-authored-by: mei23 <m@m544.net>

* use getAvatarUrl

* fix

* join avatar and banner to improve performance

* join

* Update hybrid-timeline.ts

* fix

Co-authored-by: mei23 <m@m544.net>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

* wip

* wip

* fix

* clean up

* Update tsconfig.json

* Update activitypub.ts

* wip

Fix #8359
Fix #7968

Closes #8336