[FOLLOWUP][TASK] Make the update button in extension manager clickable

Convert spaces to tabs.

Resolves: #76136
Releases: master
Change-Id: Ic17bfd0d54b38c1a80ee51d065ce8e3fe4d19efa
Reviewed-on: https://review.typo3.org/48099


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Tested-by: Helmut Hummel <helmut.hummel@typo3.org>