Add package name to App Manager

[VishnuSanal]

Description

Issue tracker

Fixes #3780

Automatic tests

• Added test cases

Manual tests

• Done

Build tasks success

Successfully running following tasks on local:

• ./gradlew assembledebug
• ./gradlew spotlessCheck

[TranceLove]

@VishnuSanal Sometimes when I come back from other app when I'm in app manager the package names will disappear.

Steps to reproduce:

1. Open App Manager
2. The apps and package names are there
3. Open an app from App Manager
4. Mangle around
5. Exit app opened in 3, go back to App Manager
6. App list is there but without package names

Fairphone 3 running LineageOS 19.1 (Android 12).

[VishnuSanal]

@TranceLove can't reproduce :( When I come back from another app, the package names are visible & the list just jumps to the top. I tested on an Android 12 emulator, Android 13 emulator & my daily driver (A11). Maybe, the TextView got hidden since its visibility is set to GONE by default (and it didn't get set to VISIBLE from AppHolder#init when AppManager was opened again)? 🤔

[TranceLove]

@TranceLove can't reproduce :( When I come back from another app, the package names are visible & the list just jumps to the top. I tested on an Android 12 emulator, Android 13 emulator & my daily driver (A11). Maybe, the TextView got hidden since its visibility is set to GONE by default (and it didn't get set to VISIBLE from AppHolder#init when AppManager was opened again)? 🤔

I tried clean build once more from my Fairphone 3 again, seems I couldn't reproduce it either. Also tried again with Pixel 6 emulator running Android 13, same result.

I'd consider my previous comment as false alarm.

[VishalNehra]

Required changes in UI as per discussion