* Admin UI: implement HTML embeds
* Admin UI External Actions: set correct useHTML on edits
* Admin UI: edit by index, not URL
* External Actions: render HTML on stream frontend
* Don't open embeds externally
* Remove TODO comment
* Add HTML as unique action key
* Admin UI: Actions: use CodeMirror editor, dropdown
* Custom emoji editor: implement backend
This reuses the logo upload code
* Implement emoji edit admin interface
Again reuse base64 logic from the logo upload
* Allow toggling between uploaded and default emojis
* Add route that always serves uploaded emojis
This is needed for the admin emoji interface,
as otherwise the emojis will 404 if custom emojis are disabled
* Fix linter warnings
* Remove custom/uploaded emoji logic
* Reset timer after emoji deletion
* Setup: copy built-in emojis to emoji directory
* Improve name & color change modal design
* Resend user info after color change
That way the name change dialog shows the correct
color when opening it the next time
* Name change modal: allow overflow of color picker
* Allow submitting form only if button is enabled
* Prettified Code!
* Make button & text input same height
Co-authored-by: xarantolus <xarantolus@users.noreply.github.com>
