TriggerSystem improvements (#35762)

* desynchronizer real

* yaml stuff from slarti branch

* C# stuff

* oops

* fix triggers

* atomize PR

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Co-authored-by: Flareguy <woaj9999@outlook.com>

Content.Server/Explosion/Components/TriggerOnUseComponent.cs

@@ -0,0 +1,7 @@
+namespace Content.Server.Explosion.Components;
+
+/// <summary>
+/// Triggers on use in hand.
+/// </summary>
+[RegisterComponent]
+public sealed partial class TriggerOnUseComponent : Component { }