feat: render frames on export (#7210)

src/tests/helpers/api.ts

@@ -6,6 +6,7 @@ import {
   ExcalidrawFreeDrawElement,
   ExcalidrawImageElement,
   FileId,
+  ExcalidrawFrameElement,
 } from "../../element/types";
 import { newElement, newTextElement, newLinearElement } from "../../element";
 import { DEFAULT_VERTICAL_ALIGN, ROUNDNESS } from "../../constants";
@@ -136,6 +137,8 @@ export class API {
     ? ExcalidrawTextElement
     : T extends "image"
     ? ExcalidrawImageElement
+    : T extends "frame"
+    ? ExcalidrawFrameElement
     : ExcalidrawGenericElement => {
     let element: Mutable<ExcalidrawElement> = null!;