Add Feedback Feature & Back to Top Button

[213sanjana]

🚀 Requested Enhancements

Feedback Feature
-Add a feedback section where users can easily share their thoughts, report issues, or suggest improvements.

Back to Top Button
-Implement a floating “Back to Top” button on all scrollable pages.
-The button should appear when the user scrolls down and smoothly scroll back to the top when clicked.

@archa8
Assign this task to me for Hacktoberfest25