Impove the -force-sidecar option to generate a xmp only when it's stricly necessary

[simulot]

As of the 0.3.4 release, the -force-sidecar generates a XMP file for each file uploaded to Immich.

This workaround the immich-app/immich#4264 issue due to mp4 file with crazy creation date.
But this is overkill to create a xmp file for each uploaded file.

It would be nice to detect such cases before uploading the file, and create a XMP just for them.

[simulot]

Done