Avalonia - Use content dialog for user profile manager (#3455)

* remove content dialog placeholder from all windows

* remove redundant window argument

* redesign user profile window

* wip

* use avalonia auto name generator

* add edit and new user options

* move profile image selection to content dialog

* remove usings

* fix updater

* address review

* adjust avatar dialog size

* add validation for user editor

* fix typo

* Shorten some labels

Ryujinx.Ava/Ui/Windows/AmiiboWindow.axaml.cs

@@ -7,7 +7,7 @@ using Ryujinx.Ava.Ui.ViewModels;
 
 namespace Ryujinx.Ava.Ui.Windows
 {
-    public class AmiiboWindow : StyleableWindow
+    public partial class AmiiboWindow : StyleableWindow
     {
         public AmiiboWindow(bool showAll, string lastScannedAmiiboId, string titleId)
         {
@@ -44,11 +44,6 @@ namespace Ryujinx.Ava.Ui.Windows
         public Amiibo.AmiiboApi ScannedAmiibo { get; set; }
         public AmiiboWindowViewModel ViewModel { get; set; }
 
-        private void InitializeComponent()
-        {
-            AvaloniaXamlLoader.Load(this);
-        }
-
         private void ScanButton_Click(object sender, RoutedEventArgs e)
         {
             if (ViewModel.AmiiboSelectedIndex > -1)