Component for clothes to suppress emotes and scream action in general, and the muzzle to suppress vocal emotes in particular (#32588)

* Component for clothes to suppress scream noise

GaggedComponent + AddGaggedClothingComponent and relevant systems to make them work.

Currently only stifles the scream _action_, not all emotes

because if a mime can silently emote, so can gagged you!

* fix comments

* swap to inventory relay

and make it more general such that specific emotes or emotes of a given category can be blocked

* power gloves shouldn't block snapping

* easy fixes

* blockable emote event

* pr comments, switch to using emote event mostly

* pr comments

add beforeEmoteEvent

add emote blocker name to popup

maybe some other stuff, I forget

* get rid of emoteevent's source because I don't need it anymore

* smol clean

* formatting, style, and one minor thing where having a muzzle in your pocket would gag you

Content.Shared/Emoting/EmoteAttemptEvent.cs

@@ -1,12 +0,0 @@
-namespace Content.Shared.Emoting
-{
-    public sealed class EmoteAttemptEvent : CancellableEntityEventArgs
-    {
-        public EmoteAttemptEvent(EntityUid uid)
-        {
-            Uid = uid;
-        }
-
-        public EntityUid Uid { get; }
-    }
-}

Content.Shared/Emoting/EmoteEvents.cs

@@ -0,0 +1,27 @@
+using Content.Shared.Chat.Prototypes;
+using Content.Shared.Inventory;
+
+namespace Content.Shared.Emoting;
+
+public sealed class EmoteAttemptEvent(EntityUid uid) : CancellableEntityEventArgs
+{
+    public EntityUid Uid { get; } = uid;
+}
+
+/// <summary>
+/// An event raised just before an emote is performed, providing systems with an opportunity to cancel the emote's performance.
+/// </summary>
+[ByRefEvent]
+public sealed class BeforeEmoteEvent(EntityUid source, EmotePrototype emote)
+    : CancellableEntityEventArgs, IInventoryRelayEvent
+{
+    public readonly EntityUid Source = source;
+    public readonly EmotePrototype Emote = emote;
+
+    /// <summary>
+    ///     The equipment that is blocking emoting. Should only be non-null if the event was canceled.
+    /// </summary>
+    public EntityUid? Blocker = null;
+
+    public SlotFlags TargetSlots => SlotFlags.WITHOUT_POCKET;
+}

Content.Shared/Inventory/InventorySystem.Relay.cs

@@ -8,6 +8,7 @@ using Content.Shared.Contraband;
 using Content.Shared.Damage;
 using Content.Shared.Damage.Events;
 using Content.Shared.Electrocution;
+using Content.Shared.Emoting;
 using Content.Shared.Explosion;
 using Content.Shared.Eye.Blinding.Systems;
 using Content.Shared.Flash;
@@ -54,6 +55,7 @@ public partial class InventorySystem
         SubscribeLocalEvent<InventoryComponent, IsEquippingTargetAttemptEvent>(RelayInventoryEvent);
         SubscribeLocalEvent<InventoryComponent, IsUnequippingTargetAttemptEvent>(RelayInventoryEvent);
         SubscribeLocalEvent<InventoryComponent, ChameleonControllerOutfitSelectedEvent>(RelayInventoryEvent);
+        SubscribeLocalEvent<InventoryComponent, BeforeEmoteEvent>(RelayInventoryEvent);
 
         // by-ref events
         SubscribeLocalEvent<InventoryComponent, RefreshFrictionModifiersEvent>(RefRelayInventoryEvent);