feat: fix screen responsiveness

[amaan-bhati]

What has changed?

Responsiveness issues in the documentation page

Please include a summary of the change:
This PR resolves the responsiveness issues with the "Previous" and "Next" buttons on the documentation page. The buttons are now fully responsive across all devices, maintaining their alignment and functionality on different screen sizes.

Also, proactively styled the button text in order to avoid future failure in responsiveness.

On large screen sizes:

On smaller screen sizes:

This PR Resolves #489

Type of change

• Bug fix (non-breaking change which fixes an issue).

How Has This Been Tested? Yes.

Please run npm run build and npm run serve to check if the changes are working as expected. Please include screenshots of the output of both the commands. Add screenshots/gif of the changes if possible.

Output of both Commands:

Checklist:

• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.

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