UI: Fix tray icon appearing when disabled in settings

UI: Align Advanced Audio Percent toggle to Volume text

UI / Log Viewer: Bring to front rather than close, add minimize/maximize buttons

CI: Add Sphinx Docs generator Github Action

This is already called by obs_source_properties internally, so this call
was unnecessary.

Because devices can take significant time to enumerate, defer the
properties creation to a separate thread.  The author of this commit
feels a great amount of displeasure over having to write this.

This allows the ability to use these functions elsewhere without having
to duplicate the code or subclass from the ComboSelectToolbar class.

The entire image source file couldn't be seen in some cases, so just
make it take up the full width

Fixes a bug where the source toolbar would show the previously selected
source from the prior scene collection when changing to a new scene
collection

Due to the placement of addStretch(), the checkbox was being
attached to the Mono label when resizing the dialog.

This changes the "View Current Log" option in the
Help menu from a toggle to always open the log viewer,
and bring it to the front when it's already open.

UI: Don't open second dialog if close event is ignored

Affects Interact, Filter and Property dialogs.

obs-ffmpeg: Fix crash when seeking with no media

UI: Fix projector not working on secondary monitors

This fixes a crash when seeking when there is no valid
media.

This fixes a bug where the projector wouldn't work on secondary
monitors on Windows.

obs-filters/obs-outputs: Cleanup unused var warns

Fix unused variables when compiling without rnnoise
Fix unused variable warnings in GCC when using assert() in release

win-capture: Robust Vulkan swap chain handling

Not all surfaces support VK_IMAGE_USAGE_TRANSFER_SRC_BIT. Only
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT is required by spec. Add fall back.

libobs: Fix underlinking X11

UI: Fix always on top w/ projectors on Linux

Apparently, on Linux, you cannot update the window flags while it is
still open, so just close the projectors and reopen them again when the
setting changes.

Allows the ability to clear projectors via a function rather than have
to manually iterate any time one needs to clear the projectors

UI: Fix transition enumeration

Fixes issue where sometimes the transition loop would return a null
transition.

UI: Change cursor when interacting with the preview

Includes move, resize, crop, stretch, box select.

UI: Fix hotkeys auto repeating

obs-filters: Fix building without noise reduction