text: export const userSelector = (state) => state.user;
  export const profilePictureUrlSelector = (state) => state.user.picture;
  export const userEmailSelector = (state) => state.user.email;
  export const tokenSelector = (state) => state.user.token;
  export const isAuthenticatedSelector = (state) => state.user.isAuthenticated;
  export const userIdSelector = (state) => state.user.userId;
  
  