🔨(frontend) add room to ws signaling url

Add the room to the ws signaling url so that
the ingress controller can route the request
to the correct pod.

src/frontend/apps/e2e/__tests__/app-impress/pad-editor.spec.ts

@@ -33,7 +33,7 @@ test.describe('Pad Editor', () => {
     await expect(page.locator('h2').getByText(randomPad[0])).toBeVisible();
 
     const webSocket = await webSocketPromise;
-    expect(webSocket.url()).toBe('ws://localhost:4444/');
+    expect(webSocket.url()).toContain('ws://localhost:4444/');
 
     const framesentPromise = webSocket.waitForEvent('framesent');