Fixes#659Fixes#633
Create Next App is using `tailwind.config.ts` in the TypeScript template. Since this is a very common use case it would be nice to preserve the type safety of the file.
I added new templates for TypeScript files. I see there is an issue #1073 which asks for ESM support as well. This is not included in this PR.
I also fixed the type error in the keyframes that is also handled in #636