fix: Fixed the grid alignment in homepage, added more transitions

[sidude2003]

Description

A clear and concise description of what the PR does.

• This PR does the following:
  • Fixes:
  • Fixes mostly done on homepage, Alignment of grid fixed as well as more transitions added on homepage
  • Removed search bar in the homepage as it is already present in the navbar thereby eliminating redundancy
  • modularized the book categories section code

Testing Instructions

Detailed instructions on how to test the changes. Include any setup needed and specific test cases.

1. Pull this branch.
2. Run npm install to install dependencies.
3. Run npm test to execute the test suite.
4. Verify that ...

Screenshots

Checklist

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• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I am working on this issue under GSSOC

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