revert: undo deletion of firebender-plugin.json

[kevo1ution]

Description

Type of Change

• New tool addition
• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Documentation update
• Code refactoring
• Other (please describe):

How Has This Been Tested?

• I've validated the JSON data with bun run validate
• I've tested the website locally with bun run dev
• I've verified all links work correctly

Checklist

• My code follows the code style of this project
• I have updated the documentation as needed
• My changes generate no new warnings or errors
• For new tool additions:
  • I've included all required fields (name, description, link, tags)
  • The link is valid and points to official documentation
  • The description is clear and concise
  • I've added appropriate tags

Screenshots

Additional Context

[kevo1ution]

file got deleted somehow in a previous commit. this should re-add it properly! Thanks!