message: fix: Add resolution steps to warning
diff: @@ -77,6 +77,10 @@ export async function startFrontend(options: StartAppOptions) {
  app.baseUrl: ${appBaseUrl}
  backend.baseUrl: ${appBaseUrl}
  +
  + Must have unique hostname and/or ports.
  +
  + This can be resolved by changing app.baseUrl and backend.baseUrl to point to their respective local development ports.
  `,
  ),
  );
  