Issue #629: Don't stop yamtrack import on error

[daften]

A fix for issue #629
For full transparency: This was generated with the help of Claude Sonnet, I'm not a python developer.

[FuzzyGrim]

Thank you!

I will keep:

except Exception as error:
    error_msg = f"Error processing entry: {row}"
    raise MediaImportUnexpectedError(error_msg) from error

Because if the user has used an unexpected CSV format, it should stop the import so we don't make unnecessary API requests for each media ID when they won't be able to be imported anyway.

[daften]

I’ll tackle that in a separate PR tomorrow normally!

[FuzzyGrim]

It's fine, I will do it. Thanks