fix(docs): update expired Discord invite link

[devpiyush20]

Summary

This pull request updates the expired Discord invite link across multiple documentation files to ensure new users can join the community. The old link (https://discord.com/invite/3sBv9mUF) was replaced with the new, non-expiring link (https://discord.gg/kkx5zYKZwR) in the following files:

• README.md
• site/src/constants.ts
• site/docs/guide/index.mdx
• CODE_OF_CONDUCT.md
• CONTRIBUTING.md

Motivation

The current Discord invite link is expired, preventing new users from joining the lovit-dev/lovit community. This change fixes the issue by updating the link to a valid, non-expiring one, as reported in issue #11. This ensures seamless access to the community for collaboration and support.

Change Type

• 🐞 Bug fix (non-breaking fix for an issue)
• ✨ Feature (non-breaking addition)
• 🧹 Refactor (non-breaking improvements, no behavior change)
• 💥 Breaking change (fix or feature that would change existing functionality)

Checklist

• I’ve read the Contributing Guidelines
• My code matches the project’s coding style (npm run lint)
• My change introduces changes to the documentation
• I’ve updated documentation where needed
• I’ve added tests covering new behavior
• All existing and new tests pass

Related Issues

• Closes Discord invite link is expired #11

[MohamadSalman11]

Thank you for your work and quick fix. It looks great!