Improve Search Functionality

[PRIYANKA-MULLU]

Enhancing the search bar to filter issues by language, topic, or difficulty level could make it easier for contributors to find suitable projects.

[ShivamGupta2003]

@PRIYANKA-MULLU , Please Assign this task to me.

[IsabellaDougherty]

It would also be beneficial to sort all listed projects by the time it has been since the project was last interacted with on the site.