Split projects into categories and highlight Useful Tools

[patdx]

I would like to separate my projects into a few major categories like "useful tools", "libraries", and "just for a fun", and make useful tools easier to find.

I have created a few useful tools that I would like to highlight, in particular:

https://sqlite-query-tool.pages.dev/
https://package-exports.vercel.app/exports-test
https://github.com/patdx/dotfiles
https://convert-to-jsx.vercel.app/