Fix UI crash when selecting broken node + TS fixes (#3859)

src/extensions/core/groupNode.ts

@@ -797,7 +797,7 @@ export class GroupNodeConfig {
 
 export class GroupNodeHandler {
   node: LGraphNode
-  groupData
+  groupData: any
   innerNodes: any
 
   constructor(node: LGraphNode) {

src/extensions/core/nodeTemplates.ts

@@ -401,6 +401,7 @@ app.registerExtension({
                   // @ts-expect-error
                   data.groupNodes = {}
                 }
+                if (nodeData == null) throw new TypeError('nodeData is not set')
                 // @ts-expect-error
                 data.groupNodes[nodeData.name] = groupData
                 // @ts-expect-error

src/extensions/core/uploadAudio.ts

@@ -117,7 +117,10 @@ app.registerExtension({
           node.addDOMWidget(inputName, /* name=*/ 'audioUI', audio)
         audioUIWidget.serialize = false
 
-        const isOutputNode = node.constructor.nodeData.output_node
+        const { nodeData } = node.constructor
+        if (nodeData == null) throw new TypeError('nodeData is null')
+
+        const isOutputNode = nodeData.output_node
         if (isOutputNode) {
           // Hide the audio widget when there is no audio initially.
           audioUIWidget.element.classList.add('empty-audio-widget')