Handle more webpack source map URIs (#67552)
This allows us to set breakpoints in (or get a proper call stack for):
- app directory source files outside of the `app` directory (e.g. `lib`)
- compiled react sources (in `src/compiled`)
- app client components (for SSR)
- previously not covered next sources (e.g.
`packages/next/src/server/lib/patch-fetch.ts`)
