[BUGFIX] Fix target path handling of UploadedFile

The PSR-7 interface states that moveTo shall use `$target` as full
`$target` path (including the file name) for uploaded files. In addition,
the current implementation was inconsistent when handling streams vs.
files. The implementation has been adjusted according to the standard.

Resolves: #77870
Releases: master
Change-Id: I2f3a43b4640a77955b25a11b5398c82e78da6af4
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63920


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Frank Nägler <frank.naegler@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Frank Nägler <frank.naegler@typo3.org>