[TASK] Add section for translated pages to lowlevel statistics page

Since table pages holds both default language and translated records,
the statistics don't add up anymore.
By introducing a dedicated value count for translated pages, the
sums are equal with the page tree again.

Resolves: #83444
Releases: master
Change-Id: Ice6edde88a15e9590a86ced78565b180d2546ab7
Reviewed-on: https://review.typo3.org/55229


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Jigal van Hemert <jigal.van.hemert@typo3.org>
Tested-by: Jigal van Hemert <jigal.van.hemert@typo3.org>