TC39 node-editor-tooling: defer WebCamInputBlock self-reference in decorator

Wrap the WebCamInputBlock._WebCamSourceManager options in a getter so the
class self-reference inside the @editableInPropertyPage arguments is
evaluated lazily, avoiding TS2449 (class used before its declaration)
under TC39 decorator evaluation order.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: RaananW

packages/tools/smartFiltersEditorControl/src/configuration/editorBlocks/webCamInputBlock/webCamInputBlock.ts

@@ -125,7 +125,9 @@ export class WebCamInputBlock extends InputBlock<ConnectionPointType.Texture> {
      */
     @editableInPropertyPage("Source", PropertyTypeForEdition.List, "PROPERTIES", {
         notifiers: { update: true },
-        options: WebCamInputBlock._WebCamSourceManager.onSourcesLoaded as Observable<IEditablePropertyListOption[]>,
+        get options() {
+            return WebCamInputBlock._WebCamSourceManager.onSourcesLoaded as Observable<IEditablePropertyListOption[]>;
+        },
         valuesAreStrings: true,
     })
     public set webcamSourceId(id: string) {