Change to get application folder name dynamically

so this is that the portable version can have the folder name changed to anything else and will still work

Author: jjw24

Flow.Launcher.Core/Configuration/Portable.cs

@@ -8,6 +8,7 @@
 using Flow.Launcher.Infrastructure.Logger;
 using Flow.Launcher.Infrastructure.UserSettings;
 using Flow.Launcher.Plugin.SharedCommands;
+using System.Linq;
 
 namespace Flow.Launcher.Core.Configuration
 {
@@ -19,7 +20,11 @@ public class Portable : IPortable
         /// <returns></returns>
         private UpdateManager NewUpdateManager()
         {
-            return new UpdateManager(string.Empty, Constant.FlowLauncher, Constant.RootDirectory);
+            var applicationFolderName = Constant.ApplicationDirectory
+                                            .Split(new[] { Path.DirectorySeparatorChar }, StringSplitOptions.None)
+                                            .Last();
+
+            return new UpdateManager(string.Empty, applicationFolderName, Constant.RootDirectory);
         }
 
         public void DisablePortableMode()