feat(mail): add dynamic mail filtering by subject and body in search

[sumamakhan761]

Fix issue : #7137

This PR adds dynamic filtering functionality to the Mail component's search bar. Users can now type in the input field, and the mail list will filter in real time based on matches in the subject or body of the emails.

Change:

Added useState for search query tracking.

Filtered mails based on subject and text.

Updated input field to sync with search query.

Passed filtered results to MailList .

first see this issue screen video [feat]: Add functional mail search to filter emails based on subject and body #7137

Bellow is Changes screen recoding

Screen.Recording.2025-04-06.204825.mp4

[vercel]

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[sumamakhan761]

please review my PR @shadcn