feat: toggleable incrementer for "Learn ahead limit" and "Timebox time limit"

[Yousuf24100286]

Purpose / Description

The "Learn ahead limit" and "Timebox time limit" required user to manually enter 0 to disable the feature.
Now added a toggle switch to enable/disable the limit.

Fixes

• Fixes Improve the "Learn ahead limit" and "Timebox time limit" dialogs #20478

Approach

• new preference class ToggleableIncrementerNumberRangePreferenceCompat
  • extends NumberRangePreferenceCompat
  • contains a MaterialSwitch toggle in the dialog
• Logic:
  • when toggle is off, incrementer is hidden and value is 0
  • when toggle is on, incrementer is shown and value is default to 1
  • 0 = disabled logic is preserved

How Has This Been Tested?

• unit tests for logic validation
• assemblePlayDebug builds successfully, lintPlayDebug passes
• all existing tests passes
• manually tested on physical device
  • build and open app
  • setting -> reviewing
  • then check for time limit box and learn ahead limit

Screenshots

Toggle Switch OFF	Toggle Switch ON

Checklist

Please, go through these checks before submitting the PR.

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner

[welcome]

First PR! 🚀 We sincerely appreciate that you have taken the time to propose a change to AnkiDroid! Please have patience with us as we are all volunteers - we will get to this as soon as possible.

[github-actions]

Important

Maintainers: This PR contains Strings changes

1. Sync Translations before merging this PR and wait for the action to complete
2. Review and merge the auto-generated PR in order to sync all user-submitted translations
3. Sync Translations again and merge the PR so the huge automated string changes caused by merging this PR are by themselves and easy to review

[ZornHadNoChoice]

Sorry, but, umm... you made the same mistake as the previous assignee despite there being clear instructions on how it should look like.

[Yousuf24100286]

Toggle Switch OFF	Toggle Switch ON

@ZornHadNoChoice pls review. is this how I was supposed to do it ?

[github-actions]

Snapshot diff report vs main. Open screenshot-diff for diffs.

• PreferencesScreenshotTest: 1 change

All 1 changed screenshots

PreferencesScreenshotTest

• ReviewingSettingsFragment_compare.png

[ZornHadNoChoice]

Almost. There should be a vertical bar like in the "Sync URL" toggle.

[Yousuf24100286]

Toggle Switch OFF	Toggle Switch ON

@ZornHadNoChoice pls review.

[ZornHadNoChoice]

It looks good, but I have no idea about the functionality or the code. I'm not a dev.