misc: Collapse LdnGameDataArray into the main class as an inner class

- privated the constructor; only obtainable by the static helper on the main LdnGameData class.
- constructor logic now in the static helper; constructor just directly sets the data it's given.

src/Ryujinx/UI/ViewModels/MainWindowViewModel.cs

@@ -127,7 +127,7 @@ namespace Ryujinx.Ava.UI.ViewModels
         public ApplicationData GridSelectedApplication;
         
         // Key is Title ID
-        public SafeDictionary<string, LdnGameDataArray> LdnData = [];
+        public SafeDictionary<string, LdnGameData.Array> LdnData = [];
 
         // The UI specifically uses a thicker bordered variant of the icon to avoid crunching out the border at lower resolutions.
         // For an example of this, download canary 1.2.95, then open the settings menu, and look at the icon in the top-left.

src/Ryujinx/UI/Windows/MainWindow.axaml.cs

@@ -171,9 +171,12 @@ namespace Ryujinx.Ava.UI.Windows
                 ViewModel.LdnData.Clear();
                 foreach (var application in ViewModel.Applications)
                 {
-                    ViewModel.LdnData[application.IdString] = new LdnGameDataArray(
-                        ldnGameDataArray,
-                        ref application.ControlHolder.Value
+                    ref var controlHolder = ref application.ControlHolder.Value;
+                    
+                    ViewModel.LdnData[application.IdString] = 
+                        LdnGameData.GetArrayForApp(
+                            ldnGameDataArray, 
+                            ref controlHolder
                         );
                     
                     UpdateApplicationWithLdnData(application);