chore(react/type_widget): save mindmap attachment

apps/client/src/widgets/type_widgets/MindMap.tsx

@@ -25,7 +25,21 @@ export default function MindMap({ note }: TypeWidgetProps) {
     const apiRef = useRef<MindElixirInstance>(null);
     const spacedUpdate = useEditorSpacedUpdate({
         note,
-        getData: () => ({ content: apiRef.current?.getDataString() }),
+        getData: () => {
+            if (!apiRef.current) return;
+            return {
+                content: apiRef.current.getDataString(),
+                attachments: [
+                    {
+                        role: "image",
+                        title: "mindmap-export.svg",
+                        mime: "image/svg+xml",
+                        content: apiRef.current.exportSvg().text(),
+                        position: 0
+                    }
+                ]
+            }
+        },
         onContentChange: (content) => {
             let newContent: MindElixirData;
             if (content) {

apps/client/src/widgets/type_widgets_old/mind_map.ts

@@ -48,27 +48,6 @@ export default class MindMapWidget extends TypeWidget {
         this.mind = mind;
     }
 
-    async getData() {
-        const mind = this.mind;
-        if (!mind) {
-            return;
-        }
-
-        const svgContent = await this.renderSvg();
-        return {
-            content: mind.getDataString(),
-            attachments: [
-                {
-                    role: "image",
-                    title: "mindmap-export.svg",
-                    mime: "image/svg+xml",
-                    content: svgContent,
-                    position: 0
-                }
-            ]
-        };
-    }
-
     async renderSvg() {
         return await this.mind!.exportSvg().text();
     }