fix: Add missing default exports

src/Button/DeleteButton/DeleteButton.tsx

@@ -78,3 +78,5 @@ export const DeleteButton: React.FC<DeleteButtonProps> = ({
     {...passThroughProps}
   />;
 };
+
+export default DeleteButton;

src/Button/ModifyButton/ModifyButton.tsx

@@ -289,3 +289,5 @@ export const ModifyButton: React.FC<ModifyButtonProps> = ({
     </>;
   }
 };
+
+export default ModifyButton;

src/FeatureLabelModal/FeatureLabelModal.tsx

@@ -67,3 +67,5 @@ export const FeatureLabelModal: React.FC<FeatureLabelModalProps> = ({
     />
   </Modal>;
 };
+
+export default FeatureLabelModal;

src/HigherOrderComponent/LoadifiedComponent/LoadifiedComponent.tsx

@@ -72,3 +72,5 @@ export function loadify<P>(WrappedComponent: React.ComponentType<any>) {
     }
   };
 }
+
+export default loadify;

src/HigherOrderComponent/MappifiedComponent/MappifiedComponent.tsx

@@ -61,3 +61,5 @@ export function mappify<P>(WrappedComponent: React.ComponentType<P>) {
     }
   };
 }
+
+export default mappify;

src/HigherOrderComponent/VisibleComponent/VisibleComponent.tsx

@@ -71,3 +71,5 @@ export function isVisibleComponent<P>(
     }
   };
 }
+
+export default isVisibleComponent;

src/Hook/useMap.ts

@@ -5,3 +5,5 @@ import MapContext from '../Context/MapContext/MapContext';
 export const useMap = (): OlMap|null => {
   return useContext(MapContext);
 };
+
+export default useMap;