Update references from Twitter to X in documentation and links.

[SarthakPaandey]

What kind of change does this PR introduce?

• Content update & maintenance
• Social media link modifications

Screenshots/videos:
N/A - URL updates only

If relevant, did you update the documentation?
Yes - All documentation files including README.md and CONTRIBUTING.md have been updated to reflect the new X.com nomenclature.

Summary
This PR implements comprehensive updates across our codebase to reflect Twitter's rebranding to X. Changes include:

Core Changes:

• Updated social media links from twitter.com to x.com
• Modified UI labels from "Twitter" to "X"
• Refreshed documentation references

Files Modified:

README.md
components/Layout.tsx
pages/blog/generateRssFeed.tsx
pages/blog/posts/6-river-systems-case-study.md
pages/blog/posts/applicability-json-schema-fundamentals-part-1.md
CONTRIBUTING.md

Does this PR introduce a breaking change?
No - All changes are backward compatible. Old Twitter links will automatically redirect to X.com.

Additional Context

• All links have been tested and verified
• Changes are part of platform-wide social media modernization
• Updates maintain existing functionality while reflecting current branding

Please review the changes and let me know if any adjustments are needed.
Thanks!

[github-actions]

Welcome to the JSON Schema Community. Thanks a lot for creating your first pull request!! 🎉🎉 We are so excited you are here! We hope this is only the first of many! For more details check out README.md file.

[DhairyaMajmudar]

@SarthakPaandey can you pls. fix the failing workflow

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (7666f0d) to head (498a75c).
Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1071   +/-   ##
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  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines          373       373           
  Branches        94        94           
=========================================
  Hits           373       373           

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[SarthakPaandey]

@DhairyaMajmudar I have fixed it.

[DhairyaMajmudar]

Thank you for the changes @SarthakPaandey, Look good to me 💯

[benjagm]

LGTM

[github-actions]

Congratulations, @SarthakPaandey for your first pull request merge in this repository! 🎉🎉. Thanks for your contribution to JSON Schema!