Feature: #89551 - Add fluidAdditionalAttributes to the form element 

See forge#89551

Description 

Allows to configure fluidAdditionalAttributes within a form element:

TYPO3:
  CMS:
    Form:
      prototypes:
        standard:
          formElementsDefinition:
            Form:
              renderingOptions:
                fluidAdditionalAttributes:
                  novalidate: 'novalidate'
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Impact 

For projects using their own Form template, the following attribute can be set on viewhelper formvh:form as attribute: additionalAttributes="{formvh:translateElementProperty(element: form, property: 'fluidAdditionalAttributes')}"