[BUGFIX] Make sure that mass actions actually process all changes

Evaluate number of total items and trigger subsequent requests to
process the remaining items, so that all changes are actually
processed.

Resolves: #84037
Releases: master, 8.7
Change-Id: I92f388b50328320973abcc290de52083f05655dd
Reviewed-on: https://review.typo3.org/55933


Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Stephan Großberndt <stephan.grossberndt@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Tobi Kretschmann <tobi@tobishome.de>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>