Focus RTE when opening reply

src/core/client/stream/test/createNodeMock.ts

@@ -1,9 +1,11 @@
+import { noop } from "lodash";
 import { ReactElement } from "react";
 
 export default function createNodeMock(element: ReactElement<any>) {
   if (element.type === "div") {
     return {
       innerHtml: "",
+      focus: noop,
     };
   }
   return null;