[TASK] Enable automatic registration as default in forms finisher definitions

Configuration/Yaml/Forms/FinisherSetupBE.yaml

@@ -13,7 +13,7 @@ TYPO3:
                   options:
                     extension: 'sg_mail'
                     template: ''
-                    automaticRegistration: ''
+                    automaticRegistration: true
                     ignoreMailQueue: true
                     mailTo: ''
                     userName: ''
@@ -29,7 +29,7 @@ TYPO3:
                   options:
                     extension: 'sg_mail'
                     template: ''
-                    automaticRegistration: ''
+                    automaticRegistration: true
                     ignoreMailQueue: true
                     mailTo: ''
                     mailFrom: ''