Fix apps using the View Dispatcher without running it

[CookiePLMonster]

This PR fixes apps that had input processing broken after https://github.com/flipperdevices/flipperzero-firmware/pull/3703. When the upgraded View Dispatcher was used without running it with view_dispatcher_run, the event queue on the UI thread eventually clogged, and it wasn't letting the app message pumps process inputs to begin with. For these cases, I migrated the apps to use a View Holder as the firmware PR recommends.

The following apps have been upgraded:

• WAV Player
• Zero Tracker - exit controls were not functional there at all before, I now properly wired them up to the View Holder

The following apps have not been upgraded:

• Flizzer Tracker - technically broken, but the version in this repo appears to be outdated, and the maintained version here https://github.com/LTVA1/flizzer_tracker already addressed this issue
• Video Player - while the View Dispatcher is technically used here, no issues occur because it quickly gets replaced with Direct Draw. Additionally, this repo's copy again appears to be outdated, with https://github.com/LTVA1/flipper-zero-video-player/tree/main/flipper_project being the latest.

Both apps now also respect the loader stop thread signal.

[xMasterX]

Thanks! And about outdated versions of some apps, I'm aware of the updates, but can't work on them rn, I posted details in our communities in telegram and discord about my health situation, Ill work on them as soon as it gets better, hopefully in next weeks or sooner