Actually make the emagging popup work properly

Content.Shared/Emag/Systems/EmagSystem.cs

@@ -96,6 +96,13 @@ public sealed class EmagSystem : EntitySystem
     }
 }
 
+/// <summary>
+/// Shows a popup to emag user (client side only!) and adds <see cref="EmaggedComponent"/> to the entity when handled
+/// </summary>
+/// <param name="UserUid">Emag user</param>
+/// <param name="Handled">Did the emagging succeed? Causes a user-only popup to show on client side</param>
+/// <param name="Repeatable">Can the entity be emagged more than once? Prevents adding of <see cref="EmaggedComponent"/></param>
+/// <remarks>Needs to be handled in shared/client, not just the server, to actually show the emagging popup</remarks>
 [ByRefEvent]
 public record struct GotEmaggedEvent(EntityUid UserUid, bool Handled = false, bool Repeatable = false);