* feat(welcome-page): be able to open settings dialog
- Create a getter for getting a settings tab's props so the device
selection tab can get updated available devices.
- Be able to call a function from a tab after it has mounted. This is
used for device selection to essentially call enumerateDevices on
the welcome page so the device selectors are populated.
- Remove event UIEvents.AUDIO_OUTPUT_DEVICE_CHANGED. Instead directly call
setAudioOutputDeviceId where possible.
- Fix initialization of the audioOutputDeviceId in settings by defaulting
the audio output device to the one set in settings.
* squash: updateAvailableDevices -> getAvailableDevices, add comment for propsUpdateFunction
* feat(settings): setting dialog
- Move device selection, profile edit, language select, moderator
options, and server auth into one modal with tabs.
- Remove side panel profile and settings and logic used to update
them.
- Pipe server auth status into redux to display in the settings
dialog.
- Change filmstrip only device selection popup to use the new
stateless settings dialog component.
* squash: do not show profile tab if not guest
* squash: profile button not clickable if no profile to show
* squash: nits
* ref: Settings dialog.