test(admin): wait for editor content in conflict test (emdash-cms#2942)

Author: ascorbic

packages/admin/tests/editor-save-conflict.test.tsx

@@ -162,7 +162,7 @@ async function renderEditPage() {
 		params: { collection: "posts", id: "post_1" },
 	});
 	const screen = await render(<TestApp />);
-	await expect.element(screen.getByRole("button", { name: "Publish", exact: true })).toBeVisible();
+	await expect.element(screen.getByRole("textbox", { name: "Title" })).toBeVisible();
 	return screen;
 }