ViewPager2, other QoL improvements

[TacoTheDank]

Made a bunch of QoL improvements around the app.

1st commit

• Deleted a bunch of unused/unneeded files around the project

2nd commit

• Update gradle wrapper to 7.3.1 using git bash

3rd commit

• Compile on Java 11 (because we can)
• Remove unused libraries
• Update AppCompat 1.3.0 -> 1.3.1
• Update AGP 4.2.2 -> 7.0.3

4th commit

• Replace platform AlertDialogs with their AppCompat versions
• Remove unused AlertDialog listeners

5th commit

• Remove unneeded overrides
• Remove other unused listeners

6th commit

• Use some Compat methods built-in to the AndroidX libraries

7th commit

• Fix some miscellaneous deprecations

8th commit

• Use BuildConfig.VERSION_NAME instead of hardcoded string

9th commit

• Migrate to using ViewPager2 (see here)

10th commit

• Enable minifying the app to reduce app size (but without obfuscation for easier bug fixing)

11th commit

• Fix a fatal lint error that reads: When a RecyclerView uses setHasFixedSize(...) you cannot use wrap_content for size in the scrolling direction.

Tested and works fine on my Android 10 device. Feel free to ask any questions you might have.

[TacoTheDank]

@kaputnikGo Any reason for the closure (besides its age)? I think this still has some important upgrades like ViewPager2.

[kaputnikGo]

this projects viability is in question with all the latest android API updates: ie concurrent audio, voice assistants and system MIC status and software switches (which may or may not do what the user thinks it does). Also Google Play are forcing identity requirements for developer accounts which means this app may no longer be on offer there.