chore: change event blog url

[AbhipsaGuru1012]

Fixes #4995

Short description of what this resolves:
Changed the URL and the section name from "Event Blog" to "Blog" in footer.

[vercel]

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🔍 Inspect: https://vercel.com/eventyay/open-event-frontend/5yry7hc2g
✅ Preview: https://open-event-frontend-git-fork-abhipsaguru1012-footer-changes.eventyay.vercel.app

[codecov]

Codecov Report

Merging #4997 into development will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           development    #4997   +/-   ##
============================================
  Coverage        22.66%   22.66%           
============================================
  Files              485      485           
  Lines             5153     5153           
  Branches            21       21           
============================================
  Hits              1168     1168           
  Misses            3981     3981           
  Partials             4        4           

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