make object type editable in s5 view model

Author: LeftofZen

Gui/ViewModels/DatTypes/ILocoFileViewModel.cs

@@ -26,7 +26,8 @@ public interface ILocoFileViewModel
 		public FileSystemItem CurrentFile { get; init; }
 
 		[Reactive]
-		public bool IsLocalMode => CurrentFile.FileLocation == FileLocation.Local;
+		public bool IsLocalMode
+			=> CurrentFile.FileLocation == FileLocation.Local;
 
 		public string ReloadText { get; }
 		public string SaveText { get; }

Gui/ViewModels/DatTypes/S5HeaderViewModel.cs

@@ -41,7 +41,7 @@ public S5HeaderViewModel(S5Header s5Header)
 		[Reactive]
 		public SourceGame SourceGame { get; set; }
 
-		[Reactive, ReadOnly(true)]
+		[Reactive]
 		public ObjectType ObjectType { get; set; }
 
 		public S5Header GetAsUnderlyingType()

Gui/Views/MainWindow.axaml

@@ -24,7 +24,9 @@
 	x:Class="OpenLoco.Gui.Views.MainWindow"
 	x:DataType="vm:MainWindowViewModel"
 	Icon="/Assets/loco_icon.png"
-	Title="{Binding WindowTitle}">
+	Title="{Binding WindowTitle}"
+	>
+	<!-- https://docs.avaloniaui.net/docs/0.10.x/tutorials/music-store-app/creating-a-modern-looking-window -->
 
 	<Design.DataContext>
 		<vm:MainWindowViewModel/>