Add ya-json-schema-types, core-ajv-schema-validator, and json-schema-describes-subset to tools page

[Utkarsh-123github]

What kind of change does this PR introduce?
Tools addition: Through this PR, three new tools: ya-json-schema-types, core-ajv-schema-validator and json-schema-describes-subset have been added to tools page

Issue Number:

• Closes Add ya-json-schema-types in JSON Schema Ecosystem #1384
• Closes core-ajv-schema-validator #1631
• Closes Add or Modify json-schema-describes-subset in JSON Schema Ecosystem #1635

If relevant, did you update the documentation?
No

Summary
New tools are added :

• ya-json-schema-types
• core-ajv-schema-validator
• json-schema-describes-subset

Does this PR introduce a breaking change?
No

Checklist

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

• Read, understood, and followed the contributing guidelines.

[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 (1ac0817) to head (c9fd196).
Report is 1 commits behind head on main.

Additional details and impacted files

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  Coverage   100.00%   100.00%           
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  Files           18        18           
  Lines          448       448           
  Branches       116       116           
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  Hits           448       448           

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[Utkarsh-123github]

Hi @benjagm , I have added a set of three different tools in this single PR. I’d really appreciate it if you could take a look and share any feedback or suggestions you might have at your convenience.
Thank you!

[benjagm]

Great job