[BUGFIX] Show proper error message in drag uploader

When uploading an invalid file (or a folder),
the message within the filelist now does not
contain empty "()" (for the status text) anymore.

Resolves: #94691
Releases: master
Change-Id: I8fcf62c7bd8a7ef3413e44e787a56fb289e73b83
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70184


Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>