fix: remove global ref when invalidating module

[WoLewicki]

Description

Right now, when removing React Native instance in brownfield apps, the ScreensModule cpp side is kept in memory until the whole app is killed. This code removes global ref when invalidating the module too. It fixes memleaks e.g. in Expensify App.

Changes

Test code and steps to reproduce

You'd need brownfield app so no repro attached. Try remove and add RN instance to native android app a couple of times, then do a heap dump in AS and check for ScreensModule instances with 0 depth in its references.

Checklist

• Included code example that can be used to test this change
• Updated TS types
• Updated documentation:
  • https://github.com/software-mansion/react-native-screens/blob/main/guides/GUIDE_FOR_LIBRARY_AUTHORS.md
  • https://github.com/software-mansion/react-native-screens/blob/main/native-stack/README.md
  • https://github.com/software-mansion/react-native-screens/blob/main/src/types.tsx
  • https://github.com/software-mansion/react-native-screens/blob/main/src/native-stack/types.tsx
• Ensured that CI passes

[kkafar]

makes sense, thanks.