Update ar.toml -Enhance Arabic User Experience with Feedback Labels and Correct Diacritics

[jadmadi]

This pull request introduces Arabic feedback labels with accurate diacritics (Tashkeel) to improve the overall user experience for Arabic speakers.

Key changes:

• Added Arabic strings for the "feedback" label.
• Corrected and applied mandatory diacritics to Arabic characters.
• Implemented the approved Arabic translation of "feedback" as defined by The Digital Arabic Language Hub (https://www.m-a-arabia.com/vb/showthread.php?t=30619).

This update ensures consistency with Arabic language standards and enhances the clarity and readability of the user interface for Arabic-speaking users.

[jadmadi]

@deining Would appreciate reviewing and approving it.

[jadmadi]

This is a stalled pull request. Should I tag someone, or is it just the regular procedure?