Added animation to scroll to top button

[sumitkr2000]

Related Issue

Closes #523

Description

Hey @cleveranu I have added animation to scroll to top button. Please review my pr and merge it. Thank you!

Screenshots

Checklist

• [x] My code adheres to the established style guidelines of the project.
• [x] I have included comments in areas that may be difficult to understand.
• [x] My changes have not introduced any new warnings.
• [x] I have conducted a self-review of my code.

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[sumitkr2000]

@cleveranu Please review this pr. Only one day left!