Replace minecraft translation strings with reference strings (#40997)

homeassistant/components/minecraft_server/strings.json

@@ -16,7 +16,7 @@
       "invalid_ip": "IP address is invalid (MAC address could not be determined). Please correct it and try again."
     },
     "abort": {
-      "already_configured": "Host is already configured."
+      "already_configured": "[%key:common::config_flow::abort::already_configured_service%]"
     }
   }
 }