Update v9.2.0: Enhanced UI and generic update messages

- Incremented version to 9.2.0 (versionCode: 92000)
- Simplified update dialog buttons: "Actualizar ahora" → "Actualizar"
- Changed "Cerrar aplicación" to "Salir" for better UX
- Maintained security and device management features
- Improved user interface text for better user experience

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/src/main/res/values/strings.xml

@@ -9,9 +9,9 @@
     <string name="message_events_error">No se pudieron cargar los eventos: %1$s</string>
     <string name="update_required_title">Actualización obligatoria</string>
     <string name="update_available_title">Actualización disponible</string>
-    <string name="update_action_download">Actualizar ahora</string>
+    <string name="update_action_download">Actualizar</string>
     <string name="update_action_view_release">Ver detalles</string>
-    <string name="update_action_close_app">Cerrar aplicación</string>
+    <string name="update_action_close_app">Salir</string>
     <string name="update_action_later">Más tarde</string>
     <string name="update_current_version">Versión instalada: %1$s (%2$d)</string>
     <string name="update_latest_version">Última versión publicada: %1$s (%2$d)</string>