Update project for Android 33 and replace deprecated code.

[dexmagic]

Changes:

• MainActivity.kt: ActivityResultContract used in place of deprecated startActivityForResult
• MainActivity.kt: ViewModelsProvider used in place of deprecated ViewModelsProviders.of()
• Use Jetpack view binding in place of setContentView throughout
• build config: mavenCenteral not jcenter
• build config: update to Java 18.
• build config: build for Android SDK 33.
• build config: use Gradle 8.0.1
• build config: update all dependencies.