Bug fix on with-tailwind example (#7584)
### Description
Bug fix on the example `with-tailwind` including:
- removed the root tsconfig because it wasn't being used and had a wrong
extend path
- renamed `tailwind-config` directory name to `config-tailwind` to obey
the convention of the rest of the config directory names. (all other
config packages start with config-)
- fixed a bug of eslint in `packages/ui/postcss.config.js` with the
error of `"module" not found`.
- fixed some import best practices and path conventions.
### Testing Instructions
running `npx create-turbo@latest -e with-tailwind` and then `pnpm dev`
should work fine.
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Co-authored-by: Anthony Shew <anthony.shew@vercel.com>
