Drag changes (#2487)

* Drag changes

* Higlights only show near cursor
* Don't highlight un-droppable entities
* Fixes invalid highlights issue

* Also the scanner

* 2 months fix

* Address reviews

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>

Content.Client/GameObjects/Components/Strap/StrapComponent.cs

@@ -1,5 +1,6 @@
 #nullable enable
 using Content.Shared.GameObjects.Components.Strap;
+using Content.Shared.Interfaces.GameObjects.Components;
 using Robust.Shared.GameObjects;
 
 namespace Content.Client.GameObjects.Components.Strap
@@ -8,5 +9,9 @@ namespace Content.Client.GameObjects.Components.Strap
     [ComponentReference(typeof(SharedStrapComponent))]
     public class StrapComponent : SharedStrapComponent
     {
+        public override bool DragDropOn(DragDropEventArgs eventArgs)
+        {
+            return false;
+        }
     }
 }