Adding subjects at the home page

[akshita119]

Describe the feature

We should add subjects list at the home page so that users can find the notes of a particular subject at one place only. Currently, notes for various chapters of the same subject are put at different places. We should organize all the pdfs of one subject at one place only.

Add ScreenShots

We can add a subjects section here with dropdown (including names of all the subjects).

Record

• [X] I agree to follow this project's Code of Conduct
• [X] I'm a GSSoC'24 contributor
• [X] I want to work on this issue

[github-actions[bot]]

Congratulations, @akshita119! 🎉 Thank you for creating your issue. Your contribution is greatly appreciated and we look forward to working with you to resolve the issue. Keep up the great work!

We will promptly review your changes and offer feedback. Keep up the excellent work! Kindly remember to check our contributing guidelines

[vaibhavi-singh-673]

@hereisSwapnil can you assign it to me I can work on it?