update sponsors and case study

[Honyii]

What kind of change does this PR introduce?
Updatung case study blogpost and sponsors

closes #2421

Summary

This pr is to make the above update

Does this PR introduce a breaking change?

No

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

[github-actions]

built with Refined Cloudflare Pages Action

⚡ Cloudflare Pages Deployment

Name	Status	Preview	Last Commit
website	✅ Ready (View Log)	Visit Preview	a29ec08

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (cef9259) to head (a29ec08).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #2422   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           31        31           
  Lines          695       695           
  Branches       215       215           
=========================================
  Hits           695       695           

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.