Per-Apps language switcher

### Please check before submitting an issue

- [x] I am using the latest version of App Manager
- [x] I have searched the issues and haven't found anything relevant
- [x] I have read the docs
- [x] I know that generating a report, in whole part or in part, using AI/LLM is prohibited

### Describe the new feature

Add options to change language for each apps, adb command for this manual is:
adb shell cmd locale set-app-locales com.sec.android.daemon.app --locales sr-Latn-RS

### Describe the solution you'd like

_No response_

### Describe alternatives you've considered

_No response_

### Additional context

_No response_

Start by locating App Manager's per-app settings UI and the existing ADB command execution entry point, then trace how app locale data is represented. Done means a user can choose a locale for an individual app and the documented set-app-locales command is applied successfully.

Written by the indexing model from the issue text.