Reduce WebSocket reconnect interval to 5 seconds

Change DEFAULT_RECONNECT_INTERVAL from 30s to 5s for faster
reconnection after server restart.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

custom_components/remote_media_player/const.py

@@ -15,7 +15,7 @@ DEFAULT_PORT = 8765
 DEFAULT_POLL_INTERVAL = 5
 DEFAULT_NAME = "Remote Media Player"
 DEFAULT_USE_WEBSOCKET = True
-DEFAULT_RECONNECT_INTERVAL = 30
+DEFAULT_RECONNECT_INTERVAL = 5
 
 # API endpoints
 API_HEALTH = "/api/health"