[BUGFIX] Don't list records from tables without searchFields on search

When searching for a string in the database list do not show any records
from tables without a searchField definition, if the searchString is not
an integer which might be a uid.

Releases: master, 8.7
Resolves: #83301
Change-Id: I259a4d9b2f89c55f9a0ac307b812e950ab549b20
Reviewed-on: https://review.typo3.org/55048


Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Hannes Lau <office@hanneslau.de>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>