Renamed WgContext to AppDbContext

WGneu/Windows/MemberListWindow.xaml.cs

@@ -19,7 +19,7 @@ namespace WGneu.Windows {
         private readonly Dictionary<Control, bool> Valid = new();
         private readonly Dictionary<Control, object?> OriginalValues = new();
         private readonly RoutedCommand CtrlF = new();
-        private readonly WgContext Context = new();
+        private readonly AppDbContext Context = new();
 
         public MemberListWindow() {
             InitializeComponent();