fix(watch): adjust rollup config for watch mode

[susnux]

• closes fix: Avoid inputs to be subpaths of output #630

Otherwise it is not possible to have input and output in the same base dir.

[ShGKme]

Otherwise it is not possible to have input and output in the same base dir

Do we have source and dist in the same folder anywhere?

And not in a place, where we use Vite as tsc only?

[susnux]

Do we have source and dist in the same folder anywhere?

The problem is apps:

• /root
  • /src
  • /js
  • /css

So the output needs to be root to be able to put css to css and js to js.
Its broken since Rollup 4.40 and fixed with 4.42 (when we use this config option).

[susnux]

/backport to stable1