Adds the feature of "Scroll to top" button

[Pratik2026]

Related to #103

I have added the feature of a scroll-to-top button to enhance the user experience. This feature allows users to easily navigate back to the top of the page with a single click.

Type of change

What sort of change have you made:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, local variables)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the guidelines of this project.
• I have performed a self-review of my own code.
• I have commented on my code, particularly wherever it was hard to understand.
• I have made corresponding changes to the documentation.

Please refer to the attached video(in full Screen) to view the newly added feature in action.

After.mp4

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[github-actions]

Congratulations on your First Pull Request! Wish you best on your open-source journey 😊

[prakhartiwari0]

Very good changes @Pratik2026!
I have found a few issues and recommendations,

Problem	Solution
	As you can see in this image, due to the colour of this button it's not visible well.

Solutions

• I would recommend a theme-green colour background, a black border and a black arrow to make it easy to spot.
• I think maybe the top-right position would be better for this button, or maybe not, we can discuss about this point more.

@Pratik2026 Please make the desired changes and then we will proceed further

Happy Contributing!

[prakhartiwari0]

Please make the desired changes I asked in the comments

[Pratik2026]

@prakhartiwari0 I have made the changes as per your recommendations. Let me know if any further adjustments are needed.

[Pratik2026]

@prakhartiwari0 Also, regarding the positioning of the Back to Top button. After considering the overall design and user experience, I believe that the current bottom-right position is more suitable. Placing the button at the bottom-right corner aligns with common web design practices, where users expect to find such navigation elements, allowing for easy access to the Back to Top button.

If you have any alternative ideas regarding the button's positioning, I would be happy to discuss them further.