The VSync combobox wouldn't populate if there was no Vulkan device,
which caused issues with trying to set VSync on other backends.
This also adds another layer to GetCurrentGraphicsBackend to check for
broken Vulkan and return OpenGL instead of Vulkan.
Before this would run on the main thread and freeze the device. Additionally this fixes the result dialog not appearing if a config change happens during the installation by getting the activity's fragment manager when needed.
Emulation states are repeatedly checked by input and performance stats. During startup and shutdown, this could lead to a long halt on the UI thread because the call to IsRunning will be waiting on the emulation mutex to be unlocked. Using atomics should replace the existing functionality without causing problems.
All dialog code (except for the Date/Time ones) has been extracted out into a generic settings dialog fragment that handles everything through a viewmodel. State for each dialog will now be retained and dialogs will stay shown through configuration changes.
I won't be changing the current state of the date and time dialog fragments until Google decides to make their classes non-final or if/when we migrate to Jetpack Compose.
If something like a lifecycle event happens when this switch is toggled (Ex. whenever the black backgrounds switch is toggled), this could move the switch from the default position and trigger the checked changed listener and restart the loop. Here I just removed the listener at the start so we recycle the view properly still, set the checked state and then add the new listener.
FearlessTobi