Important: #97517 - Remove the superfluous namespace within the form configuration

See forge#97517

Description

The superfluous vendor namespace (TYPO3.CMS.Form) has been removed from the form configuration. That way the configuration of the form framework is less deeply nested.

The compatibility to the notation with the vendor namespace is maintained, both notations are still possible. Nevertheless we recommend not to apply the vendor namespace.

Migration

This is how the legacy configuration with vendor namespace looks like:

TYPO3:
  CMS:
    Form:
      prototypes:
        standard:
          formElementsDefinition:
            # ...
      # ...

This is how the new (preferred) configuration without vendor namespace looks like:

prototypes:
  standard:
    formElementsDefinition:
            # ...
# ...