[TASK] Don't redraw workspace table on search input focus

Avoid fetching and redrawing the record overview table when
the search term input field gets focussed. This prevents
breaking the ui state and unwanted deselecting of rows.

Resolves: #103802
Releases: main, 12.4
Change-Id: I3ff0f478e1a91a1a785f7093b26d1bf610dac921
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/85559


Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>