[BUGFIX] Make buttons after file search working again

JavaScript is not loaded anymore.
Re-add the loading of the correct JavaScript file.

Resolves: #71475
Releases: master
Change-Id: I5ec8e290413233e744276590df4d1504c8955eb0
Reviewed-on: https://review.typo3.org/44681


Reviewed-by: Alexander Opitz <opitz.alexander@googlemail.com>
Tested-by: Alexander Opitz <opitz.alexander@googlemail.com>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>