Improve RSC compiler error in external module (#46953)
When the RSC compiler error was caused by an external package, make the
error message display which import caused the error. Also don't show
node_module files in the import trace.
Continuation of https://github.com/vercel/next.js/pull/45484
Before
After
Updates the format of the files, from `app/page.js` to `./app/page.js`
to align it with other import traces.
Closes NEXT-523
