feat: Lint other filetypes with prettier

[vikr01]

prettier supports linting for various other languages besides javascript.

• Use prettier to autofix json, md, html, yml, and css files since they're all used in this repo
  • Used during precommit
  • Used in postlint:fix script that occurs after the lint:fix script
• Change .prettierrc to .prettierrc.json so it can be linted (could also keep it as .prettierrc and use the overrides option in the config)
• Include dotfiles in lint-staged since they aren't be default
• Don't lint package.json with prettier since it gets changed by package managers.

[offirgolan]

Thanks for opening this PR @vikr01. I've noted a couple of files that should be ignored from linting altogether as they are auto generated.