Important: #99660 - Remove content area from new record wizard

See forge#99660


The TYPO3 backend comes with a distinction between "content elements" and other records: While content is managed using the specialized Page module, the List module is the main management interface for other types of records.

Managing content elements from within the List module is not a good choice for editors, the Page module should be used.

To foster this separation, the Create new record view reachable from within the List module no longer allows to add content elements. As a side effect, this avoids wrong or invalid default values of the Column (colPos) field.