Fix #644: Initial UI render using correct language from browser

Closes #644

See merge request funkwhale/funkwhale!507

Fixed slow query on domain list / stats

See merge request funkwhale/funkwhale!506

Fix #643: Upgraded core dependencies to fix websocket/messaging issues and possible memory leaks

Closes #643

See merge request funkwhale/funkwhale!505

Domaind dedicated table

See merge request funkwhale/funkwhale!504

This reverts commit 7ed3a247.

Resolve "Password-protected redis connection seems to not be respected"

Closes #640

See merge request funkwhale/funkwhale!503

Disable preloading

See merge request funkwhale/funkwhale!502

Smaller CSS with purge CSS (130kb removed)

See merge request funkwhale/funkwhale!501

Fixed broken translations build

See merge request funkwhale/funkwhale!500

Improve front-end performance

See merge request funkwhale/funkwhale!499