Story #69712: Further FormEngine development
SelectTree (Category Tree) - add horizontal scrolling
Tested with TYPO3 8.7.10
1) create some nested categories with long texts
2) resize the window and reduce it
RESULT: see attached screenshot: some part of the text is cut and it is impossible to read it, as there is no horizontal scrolling.
I have not tested with TYPO3 9.2 but I think it has the same problem.