feat: unique status requests for messengers

UI Applications can now request status for specific feature sets instead of full status for a device. This will hopefully cut down on the traffic and messages required to get the data for the UI.

src/PepperDash.Essentials.MobileControl/Touchpanel/ThemeMessenger.cs

@@ -42,10 +42,11 @@ namespace PepperDash.Essentials.Touchpanel
     /// </summary>
     public class ThemeUpdateMessage : DeviceStateMessageBase
     {
-        [JsonProperty("theme")]
+
         /// <summary>
         /// Gets or sets the Theme
         /// </summary>
+        [JsonProperty("theme")]
         public string Theme { get; set; }
     }
 }