Style changes in homepage

[cbum-dev]

What kind of change does this PR introduce?
Ui fixes in main page particularly the "Welcome to the JSON Schema Community" section. Changed the styling and positioning of cards.

Issue Number:

• Closes 🐛 Bug: Ui fixes in main page. #1273

Screenshots/videos:

Screencast.From.2025-01-22.23-07-02.mp4

If relevant, did you update the documentation?
No

Does this PR introduce a breaking change?

[cbum-dev]

Hi everyone, let me know if their is some need of improvement here.

[github-actions]

built with Refined Cloudflare Pages Action

⚡ Cloudflare Pages Deployment

Name	Status	Preview	Last Commit
website	✅ Ready (View Log)	Visit Preview	5e1e902

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (ee9538b) to head (5e1e902).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1360   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines          373       373           
  Branches        94        94           
=========================================
  Hits           373       373           

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[benjagm]

Can you please review and fix the new borders added? They don't work in the dark theme.