Fix turning valve on/off (#19269)

src/common/const.ts

@@ -272,6 +272,7 @@ export const DOMAINS_TOGGLE = new Set([
   "group",
   "automation",
   "humidifier",
+  "valve",
 ]);
 
 /** Domains that have a dynamic entity image / picture. */

src/panels/lovelace/common/entity/turn-on-off-entity.ts

@@ -24,6 +24,9 @@ export const turnOnOffEntity = (
     case "scene":
       service = "turn_on";
       break;
+    case "valve":
+      service = turnOn ? "open_valve" : "close_valve";
+      break;
     default:
       service = turnOn ? "turn_on" : "turn_off";
   }