[BUGFIX] Align translation prefix handling in DataMapProcessor

For translating / synchronizing (inline) records, the DataHandler
dispatches the data map to the DataMapProcessor. This components'
implementation of the translation prefix however differed from the
one in DataHandler, leading to inconsistency, as some fields still
got the "Translate to:" prefix added, while others did not.

This is now fixed by aligning the functionality with the one
used in the DataHandler.

Resolves: #97721
Releases: main, 11.5
Change-Id: I425ca172f2c66cf43613fb62be0e35fa1dff76fe
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/74767


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