Someone recommended me https://0xchat.com/#/ for secure chat on Nostr, but I'm not so sure. Wouldn't it just increase attack surface to add the private key in one extra place? If clients such as nostr:npub1wyuh3scfgzqmxn709a2fzuemps389rxnk7nfgege6s847zze3tuqfl87ez nostr:npub12vkcxr0luzwp8e673v29eqjhrr7p9vqq8asav85swaepclllj09sylpugg can use Alby / flamingo / nos2x and also have Messages?