Fix cypress test following j2c (#10484)

The current logic introduced a race condition in which the test would only pass if the expect() ran before the app determined that the highlighted line was in fact on the current point and re-rendered.

packages/e2e-tests/tests/cypress-04_menu-commands.test.ts

@@ -59,7 +59,7 @@ test("cypress-04: Test Step buttons and menu item", async ({
 
   await waitForSelectedSource(page, "Link.js");
   await waitFor(async () => {
-    const lineNumber = await getSelectedLineNumber(page, false);
+    const lineNumber = await getSelectedLineNumber(page, true);
     expect(lineNumber).toBe(38);
   });