Merge branch '3504589-ui-patterns-ui' into '3.0.x'

...erns_ui_fieldgroups/src/Element/DisplayFormFieldGroup.php

...es/ui_patterns_ui_fieldgroups/src/FieldGroupFormTrait.php

...ui_patterns_ui_fieldgroups/src/Form/FieldGroupAddForm.php

...patterns_ui_fieldgroups/src/Form/FieldGroupDeleteForm.php

...c/Plugin/Derivative/UiPatternsUiFieldgroupLocalAction.php

...tterns_ui_fieldgroups/ui_patterns_ui_fieldgroups.info.yml

...i_fieldgroups/ui_patterns_ui_fieldgroups.links.action.yml

...patterns_ui_fieldgroups/ui_patterns_ui_fieldgroups.module

...rns_ui_fieldgroups/ui_patterns_ui_fieldgroups.routing.yml

...ns_ui_fieldgroups/ui_patterns_ui_fieldgroups.services.yml