Use audio display name if available

src/FocusVolumeControl/AudioHelpers/AudioHelper.cs

@@ -68,8 +68,15 @@ public class AudioHelper
 					{
 						bestProcessMatch = audioProcess;
 						currentIndex = index;
+
+						if(string.IsNullOrEmpty(results.DisplayName))
+						{
+							session.GetDisplayName(out var displayName);
+							results.DisplayName = displayName;
+						}
 					}
 
+
 					//some apps like discord have multiple volume processes.
 					//and some apps will be on multiple devices
 					//so we add all sessions so we can keep them in sync