We are starting the cutover process and starlight_help is the directory
we have agreed on to place our new help center project. We do not want
to use `starlight_help` as the URL for the project, but this commit
changes the url from `help-beta` to `starlight_help` temporarily since
we can only change URL once we get rid of the current help center
project. That will be done in a future commit.
We are adding MDX files to `.gitignore` for now since they are
just a result of a build process, once the migration is done,
we will not ignore them.
We're using PNPM workspaces to manage this project.
The new project's tsconfig.json has been copied from the current
root tsconfig.json while omitting some details that are only
relevant to that project.
`help-beta/src/env.d.ts` is a type declaration file auto-generated
by Astro. See https://github.com/withastro/astro/issues/6013.