Surface editor - Refactor selection/movement code to match nodes

Device visualizer - Fixed exception when updating devices during render

src/Artemis.UI/Screens/VisualScripting/NodeView.axaml.cs

@@ -2,10 +2,7 @@ using System;
 using System.Collections.Generic;
 using Avalonia;
 using Avalonia.Controls;
-using Avalonia.Controls.Mixins;
-using Avalonia.Controls.Presenters;
 using Avalonia.Input;
-using Avalonia.LogicalTree;
 using Avalonia.Markup.Xaml;
 using Avalonia.ReactiveUI;
 using Avalonia.VisualTree;