feat: added responsiveness for tablets and learn more button

[bandhan-majumder]

What kind of change does this PR introduce?

Adds responsiveness for tablets and fixes the collapsing learn more button on the hero section

Issue Number:

Fixes #889

Snapshots/Videos:
https://www.loom.com/share/0dd44490829d4a12961143448539a505

Summary

While I was going through the docs in my tab, I felt that the user experience can be better if responsiveness for tablet screens are added. Also noticed the "learn more" button collapsing for wider screens. This pull request fixes the issue.

Have you read the contributing guide?

yes

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