[Feature] Add about us page and link it with footer and navbar link

[KIRTI13115]

🔍 Have You Searched Existing Issues?

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💡 Problem Description

As of now in footer and navbar there is about us link but leads to nothing.

✅ Proposed Solution

I can add the About us page and link it with those links

🔄 Alternatives Considered

No response

🖼️ Screenshots or Diagrams (Optional)

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