[Bug] Add Navbar & Footer on all blog pages

[AsmitaMishra24]

Is there an existing issue for this?

• [X] I have searched the existing issues

Bug Description?

Currently, the blog pages are missing a consistent Navbar and Footer. This enhancement will improve the user experience by ensuring seamless navigation across the site and provide access to essential links in the footer.

Add Screenshots

Present: https://github.com/user-attachments/assets/45132a85-fbac-4a36-b730-cb9305e75556

After: https://github.com/user-attachments/assets/a6b451d1-91ab-4e67-b9e3-2bda9e00e3f7

What browsers are you seeing the problem on?

No response

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• [X] I'm a GSSOC contributor
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• [X] I'm willing to provide further clarification or assistance if needed.

[AsmitaMishra24]

I have resolved the issue locally. Please assign this issue to me so that I can create a pull request for review.

https://github.com/user-attachments/assets/9871ed8b-bc03-42e8-a889-cc977270e31e