fix: Marker arrowheads not displayed

src/container/EdgeRenderer/Marker.tsx

@@ -1,10 +1,17 @@
-import { FunctionalComponent } from 'vue';
+import { defineComponent } from 'vue';
 
 interface MarkerProps {
   id: string;
 }
 
-export default ((props: MarkerProps, { slots }) => {
+export default defineComponent({
+  props: {
+    id: {
+      type: String,
+      required: true
+    }
+  },
+  setup(props: MarkerProps, { slots }) {
     return () => (
       <marker
         id={props.id}
@@ -19,4 +26,5 @@ export default ((props: MarkerProps, { slots }) => {
         {slots.default ? slots.default() : ''}
       </marker>
     );
-}) as FunctionalComponent<MarkerProps>;
+  }
+});