Changes the default `tsconfig.json` with better defaults, and makes `src/env.d.ts` optional
Astro's default `tsconfig.json` in starter examples has been updated to include generated types and exclude your build output. This means that `src/env.d.ts` is only necessary if you have added custom type declarations or if you're not using a `tsconfig.json` file.
Additionally, running `astro sync` no longer creates, nor updates, `src/env.d.ts` as it is not required for type-checking standard Astro projects.
To update your project to Astro's recommended TypeScript settings, please add the following `include` and `exclude` properties to `tsconfig.json`:
