feat: Added the about us page

[ayush-848]

Title and Issue number

Title : Added the about us page

Issue No. : #1354

Close #1354

Code Stack : HTML, CSS

Video/Screenshots (mandatory)

https://www.awesomescreenshot.com/video/30372786?key=fcdaa68b282e4cdf14ba82307607c4db

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Checklist:

• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have gone through the contributing.md file before contributing

Additional context:

##Are you contributing under any Open-source programme?

• I am contributing under GSSOC'24
• I am contributing under VSOC'24

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[ayush-848]

@apu52 please check it

[apu52]

@ayush-848 there is some merge conflicts present in this PR , please try to fix the conflicts ASAP .

[ayush-848]

@apu52 check now

[apu52]

@ayush-848 great work