Add config flow to Snapcast (#24562)

Co-authored-by: Franck Nijhof <frenck@frenck.nl>

source/_integrations/snapcast.markdown

@@ -6,33 +6,15 @@ ha_category:
 ha_release: 0.13
 ha_iot_class: Local Polling
 ha_domain: snapcast
+ha_config_flow: true
 ha_platforms:
   - media_player
 ha_integration_type: integration
 ---
 
-The `snapcast` platform allows you to control [Snapcast](https://github.com/badaix/snapcast) from Home Assistant.
+The Snapcast integration allows you to control [Snapcast](https://github.com/badaix/snapcast) from Home Assistant.
 
-To add Snapcast to your installation, add the following to your `configuration.yaml` file:
-
-```yaml
-# Example configuration.yaml entry
-media_player:
-  - platform: snapcast
-    host: YOUR_IP_ADDRESS
-```
-
-{% configuration %}
-host:
-  description: The IP address of the device, e.g., `192.168.0.10`.
-  required: true
-  type: string
-port:
-  description: The port number.
-  required: false
-  default: 1705
-  type: integer
-{% endconfiguration %}
+{% include integrations/config_flow.md %}
 
 ## Services