Migrate Notebook Upload File to React (#581)

Co-authored-by: Steve Faulkner <471400+southpolesteve@users.noreply.github.com>

src/Explorer/Tree/ResourceTreeAdapter.tsx

@@ -765,7 +765,7 @@ export class ResourceTreeAdapter implements ReactAdapter {
       {
         label: "Upload File",
         iconSrc: NewNotebookIcon,
-        onClick: () => this.container.onUploadToNotebookServerClicked(item),
+        onClick: () => this.container.openUploadFilePanel(item),
       },
     ];