Add back to the top button

[siya25097]

Description:
A "Back to the Top" button helps users quickly return to the top of a webpage with one click, improving navigation while exploring footer section of the page.

Feature Details:
Small icon/arrow, customizable in size, color, and style.

@sk66641 please assign me this issue under gssoc'24

[github-actions]

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[github-actions]

Hello @siya25097! Your issue #114 has been closed. Thank you for your contribution!