* feat: Adds interface config to hide lobby button.

* squash: Moves the config to config.js and add it to mobile.

In order to translate the title.. Pull request #7246

- Disables the invite buttons while invites are ongoing
- Adds a keyboard shortcut (Enter) to send out invites
- Closes AddPeopleDialog upon successful invites sent
- Fixes the SecurityDialog closing when trying to set E2EE key via Enter shortcut
- Removes superfluous separator from SecurityDialog

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