* Convert class
* Convert routes
* Convert tests

use proper font stack for email

fix ordering of user menu entries

Small design fixes for "Cancel login" link on the 2FA challenge page

Increase theming performance

2fa challenge styling

Reduce the number of cache operations for dav operations

Fixing infinite spinner animation

Avatar controller cleanup

1. Set proper caching headers (`Pragma: cache`)
2. Resize image proportionally to a max size of 1920px
3. Store images with progressive mode

This resizes a previous 2.8 MB picture to 300kb and makes it rendering going down from 11 seconds to less than 1 here. And future requests won't have to download the file newly.

Theming: Preview instance name in page title

Tag cleanup

prevent infinite redirect loops if the there is no 2fa provider to pass

Fix the syntax of the federation ID share buttons

Theming: Fix missing color usage

Private internal stuff that nobody *should* be using anyways.
But on top of that already broken for a long time. So nobody could be
using it even.

fix setting quota to default or unlimited

Sharee API to AppFramework

Theming admin improvements

Always use the LazyRoot