Separate core codebase into its own module

- Separate UI specific code and resources outside of the core
  application logic
- Allow most of the code to move forward and use KSP for annotation
  processing and isolate rotton code that is stuck with databinding
- Make full UI rewrite more feasible

gradle.properties

@@ -24,6 +24,7 @@ org.gradle.caching=true
 android.useAndroidX=true
 android.injected.testOnly=false
 android.nonFinalResIds=false
+android.nonTransitiveRClass=false
 
 # Magisk
 magisk.stubVersion=39