Use new TS config from @jitsi/eslint
Fix all lint errors

Convert files that use material-ui to TS (needed for material-ui upgrade)

I'm updating to RN 0.63 instead of the latest (0.66 at the time of this writing)
so we can update the navigation related libraries to their latest versions, and
then proceed with the larger leap towards the latest RN.

In cross origin issolated mode we need to explicitly add crossOrigin
attribute for all resources that are loaded with CORS headers.

- translate uses interfaceConfig object which does not exist in AOT context

* Make Jitsi WCAG 2.1 compliant

* Fixed password form keypress handling

* Added keypress handler to name form

* Removed unneccessary dom query

* Fixed mouse hove style

* Removed obsolete css rules

* accessibilty background feature

* Merge remote-tracking branch 'upstream/master' into nic/fix/merge-conflicts

* fix error

* add german translation

* Fixed merge issue

* Add id prop back to device selection

* Fixed lockfile

Co-authored-by: AHMAD KADRI <52747422+ahmadkadri@users.noreply.github.com>

Found via `codespell -q 3 -S ./lang`

The lobby feature adds the possibility to lock a meeting and only allow people in after virtually knocking and going through formal approval

Reason: On Safari the foreign object is not scaled correctly.

Uses nullish coalescing and optional chaining.