fix: indeedhub staging API, nginx caching, nostr identity and UI improvements

Switch IndeedHub to staging API, add _next asset caching in nginx,
simplify NostrIdentityPicker component, and update Apps/Web5/Marketplace views.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

neode-ui/src/locales/es.json

@@ -12,6 +12,7 @@
     "install": "Instalar",
     "installing": "Instalando...",
     "uninstall": "Desinstalar",
+    "uninstalling": "Desinstalando...",
     "start": "Iniciar",
     "stop": "Detener",
     "restart": "Reiniciar",