Fix various code issues.
i18n invite menu.

Fix member sidebar not showing on mobile.

Remove hooks completely. :)

200 error milestone

Add Channel object.

i18n invites page.
Polish the bans page.

Use server config for image proxy.

Animate avatars on message hover.
Switch to 24-hour time format by default.

- Image embeds actions now use a better styling that's the same as the other action stylings

- replaced many uses of `as any` with another more specific cast `as T`
- filled in missing typed for items that needed to be typed
  - new runtime code was added where necessary to satisfy the new types with comments
- added missing theme variable "sidebar-active" to the Theme variables
- forms using `react-hook-form` are now typechecked
- changed some instances of `target` into `currentTarget` while removing `as any` assertions

Fix invite / friends menu having sidebars.

Add icon stacking mask.

Add remove / block user confirmation.