[BUGFIX] Disable edit button for delete placeholder records

Skip the "edit" pen icon in workspace BE module when
the record is a "delete placeholder" (marked for
deletion in workspaces). Such a record can not be
edited and leads to an error view.

Resolves: #104324
Releases: main
Change-Id: I12f89e8deaee8aad8b0cbc4017d34bf17823cea1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/85142


Tested-by: Garvin Hicking <gh@faktor-e.de>
Reviewed-by: Jasmina Ließmann <minapokhalo+typo3@gmail.com>
Reviewed-by: Garvin Hicking <gh@faktor-e.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Jasmina Ließmann <minapokhalo+typo3@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>