Add scroll zooming for admins and ghosts (#14061)

* Add scroll zooming for admins

* Bunch of work

* Kinda better kinda worse scrolling

* shared code

* nyoom

* house md

* Fixes

* Log spam

* Fixes

---------

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

Content.Server/Movement/Systems/ContentEyeSystem.cs

@@ -0,0 +1,29 @@
+using Content.Shared.Movement.Components;
+using Content.Shared.Movement.Systems;
+
+namespace Content.Server.Movement.Systems;
+
+public sealed class ContentEyeSystem : SharedContentEyeSystem
+{
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        var eyeQuery = GetEntityQuery<SharedEyeComponent>();
+
+        foreach (var (_, comp) in EntityQuery<ActiveContentEyeComponent, ContentEyeComponent>(true))
+        {
+            var uid = comp.Owner;
+
+            // Use a separate query jjuussstt in case any actives mistakenly hang around.
+            if (!eyeQuery.TryGetComponent(comp.Owner, out var eyeComp) ||
+                eyeComp.Zoom.Equals(comp.TargetZoom))
+            {
+                RemComp<ActiveContentEyeComponent>(comp.Owner);
+                continue;
+            }
+
+            UpdateEye(uid, comp, eyeComp, frameTime);
+        }
+    }
+}