Make CharacterWindow bigger to accomodate traitor objectives (#5850)

* Move MinSize to the same place where the window is created

* Adds BoxContainer to a ScrollContainer so it can resize in case of more objectives

* Slight adjustment to ensure the convention is followed

* Changes MinSize to SetSize so it can be resized to lower sizes and to stop it resizing every time you reopen it

Content.Client/CharacterInterface/CharacterInterfaceComponent.cs

@@ -41,7 +41,11 @@ namespace Content.Client.CharacterInterface
                 {
                     Orientation = LayoutOrientation.Vertical
                 };
-                Contents.AddChild(contentsVBox);
+
+                var mainScrollContainer = new ScrollContainer { };
+                mainScrollContainer.AddChild(contentsVBox);
+
+                Contents.AddChild(mainScrollContainer);
 
                 windowComponents.Sort((a, b) => ((int) a.Priority).CompareTo((int) b.Priority));
                 foreach (var element in windowComponents)