Promise.race resolve or rejects with the first promise that answers.
We now return the first promise that fulfills after all promises have
settled.

first hit wins. This allows us to transparently use sourcemaps and other files that
are not part of the sources according to the vite manifest

this currently doesn't really work as expected, but can be used as a base
to properly implement CSP for the scripts we "know" about.

the file cache is populated with data defined in the manifest files configured for
all components and will basically fetch everything from all components. This allows
us to use this manifest service as the only source of truth for UI related sources and
simplifies ingres setup a lot.