dynamic alert sprites (#25452)

* dynamic alert sprite

* fix fat cooldowns

Content.Client/Alerts/UpdateAlertSpriteEvent.cs

@@ -0,0 +1,21 @@
+using Content.Shared.Alert;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.Alerts;
+
+/// <summary>
+/// Event raised on an entity with alerts in order to allow it to update visuals for the alert sprite entity.
+/// </summary>
+[ByRefEvent]
+public record struct UpdateAlertSpriteEvent
+{
+    public Entity<SpriteComponent> SpriteViewEnt;
+
+    public AlertPrototype Alert;
+
+    public UpdateAlertSpriteEvent(Entity<SpriteComponent> spriteViewEnt, AlertPrototype alert)
+    {
+        SpriteViewEnt = spriteViewEnt;
+        Alert = alert;
+    }
+}