chore: small refactor and moving types around

Signed-off-by: benjdlambert <ben@blam.sh>

packages/scaffolder-internal/src/wiring/InternalFormField.ts

@@ -17,12 +17,10 @@
 import { OpaqueType } from '@internal/opaque';
 import { z } from 'zod';
 
-import { FormFieldExtensionData } from '@backstage/plugin-scaffolder-react/alpha';
-
-/** @alpha */
-export interface FormField {
-  readonly $$type: '@backstage/scaffolder/FormField';
-}
+import {
+  FormFieldExtensionData,
+  FormField,
+} from '@backstage/plugin-scaffolder-react/alpha';
 
 /** @alpha */
 export const OpaqueFormField = OpaqueType.create<{

packages/scaffolder-internal/src/wiring/index.ts

@@ -13,5 +13,5 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-export { OpaqueFormField, type FormField } from './InternalFormField';
+export { OpaqueFormField } from './InternalFormField';
 export { OpaqueFormDecorator } from './InternalFormDecorator';