test(e2e): wait for list to be rendered to take screenshot

Author: florianduros

playwright/e2e/left-panel/room-list-panel/room-list-panel.spec.ts

@@ -44,6 +44,11 @@ test.describe("Room list panel", () => {
 
     test("should respond to small screen sizes", { tag: "@screenshot" }, async ({ page }) => {
         await page.setViewportSize({ width: 575, height: 600 });
+
+        const roomListView = getRoomListView(page);
+        // Wait for the last room to be visible
+        await expect(roomListView.getByRole("gridcell", { name: "Open room room19" })).toBeVisible();
+
         const roomListPanel = page.getByTestId("room-list-panel");
         await expect(roomListPanel).toMatchScreenshot("room-list-panel-smallscreen.png");
     });