UI: Fix recording check when using url output

obs-ffmpeg: fix crash with rawvideo

CI: Fix Azure macOS pipeline to use new build script

CI: Bump macOS-deps version to include rnnoise

Some codecs have no recommended pix_fmts so we must check that pix_fmts
is not null before trying to find a good match. This just prays whatever
OBS is configure for is a valid format when users choose these oddball
codecs. When its not you should get a normal recording fail instead of a
crash now.

fixes #3031

Previously this check would prevent you from using URL output if your
file output target was invalid.

Fixes https://github.com/obsproject/obs-studio/issues/3436

For additional safety, uncheck the bandwidth test checkbox so that the
setting isn't persisted in an enabled state when disconnecting or
switching a service. Also just straight up disable if not authed to
Twitch when saving settings.

It was possible to enable the bandwidth test and disconnect your Twitch
account, resulting in a confusing prompt about streaming in bandwidth
test mode when trying to start a stream.

rtmp-services: Add SHOWROOM

win-capture: Improve game capture messages

Tag debug output in the game process with "[OBS]" and mention that
graphics-hook.dll is ours.

deps/media-playback: Fix fast-forward after reset

Fixes #3341 by ensuring timestamps are reset after pausing.

UI: Fix scene tree event handling

UI: Remove redundant word

UI: Fix vcam button not changing colors when checked

UI: Remove duplicate media timer code

This fixes the remaining bugs that were still present when trying to fix
audio-related crashes with AJA devices.

This fixes a bug with the Rachni theme in which the virtual
camera button wouldn't change colors when active.

The old version of the device toolbar was a complex situation.  Because
of the fact that device properties can take significant time to query,
this put an unpleasant burden on the UI thread; so to fix this problem,
the device toolbar was made to be threaded.  However, threading is a
complex and dangerous thing, and there is a fear that this could cause
complications down the line whenever users are simply selecting devices.

So for the time being, as a safety precaution, simplify the device
toolbar down to just the "activate" button, and make it so that if users
really need to query and change the devices, that they need to
explicitly open the properties.  That way the devices aren't being
queried constantly every time a device source is selected.

Alternatively in the future, device enumeration could be cached, but
seeing as that's a significant amount of work and needs to take in to
account whether a user adds/removes a device while the process is
active, that's not going to happen any time soon.

This removes duplicate code that is already in the
start/stop timer functions.

This isn't particularly needed, as a service with multiple tracks won't
be using multiple tracks to begin with anyway.  This might change later,
but for now just mark it deprecated.

Unify color space settings as 709

Fixes an issue where when paused, the thread loop would continue to
repeat endlessly until unpaused.

Remove redundant "desired" in
Basic.AutoConfig.VideoPage.SubTitle="Specify the desired video settings
you would like to use"

This fixes a bug where the same scene would show up in
the multiview more than once when reordering scenes.

UI: Fix studio mode load bug

UI: Ensure tray icon is themed in all cases

UI: Set restart state when there is no media