Convert almost all IActivate instances that open UIs to ActivatableUI (#7028)

* Chem master

* Drone support for handhelds

* Vending machines, scanners

* Cloners, R&D computers

* make research a little less sussy

* Unfuck wires

* PA control computer

* Unfuck merge

* Clean up git gore for good

* Disposals

* Microwaves

* paper

* Magic mirror

* More vendors for drones

* Solar computer whitelist

* EFR review updates

Content.Server/CharacterAppearance/Systems/MagicMirrorSystem.cs

@@ -0,0 +1,42 @@
+using Content.Server.CharacterAppearance.Components;
+using Content.Server.UserInterface;
+using Content.Shared.CharacterAppearance.Components;
+using Robust.Server.GameObjects;
+
+namespace Content.Server.CharacterAppearance.Systems
+{
+    public sealed class MagicMirrorSystem : EntitySystem
+    {
+        public override void Initialize()
+        {
+            base.Initialize();
+            SubscribeLocalEvent<MagicMirrorComponent, ActivatableUIOpenAttemptEvent>(OnOpenUIAttempt);
+            SubscribeLocalEvent<MagicMirrorComponent, AfterActivatableUIOpenEvent>(AfterUIOpen);
+        }
+
+        private void OnOpenUIAttempt(EntityUid uid, MagicMirrorComponent mirror, ActivatableUIOpenAttemptEvent args)
+        {
+            if (!HasComp<HumanoidAppearanceComponent>(args.User))
+                args.Cancel();
+        }
+        private void AfterUIOpen(EntityUid uid, MagicMirrorComponent component, AfterActivatableUIOpenEvent args)
+        {
+            var looks = Comp<HumanoidAppearanceComponent>(args.User);
+            var actor = Comp<ActorComponent>(args.User);
+            var appearance = looks.Appearance;
+
+            var msg = new MagicMirrorComponent.MagicMirrorInitialDataMessage(
+                appearance.HairColor,
+                appearance.FacialHairColor,
+                appearance.HairStyleId,
+                appearance.FacialHairStyleId,
+                appearance.EyeColor,
+                looks.CategoriesHair,
+                looks.CategoriesFacialHair,
+                looks.CanColorHair,
+                looks.CanColorFacialHair);
+
+            component.UserInterface?.SendMessage(msg, actor.PlayerSession);
+        }
+    }
+}