Move entity effects definitions to shared (#35614)

* Move entity effects to shared

* relocate spawning to server

* Generic version of EntityEffect for just raising event.

* genericise everything

* oops forgot to push you

* some condensation

* finish rebas

* unwhite the space

* oops forgot nuke

* bad rebase fix

* useless annotations begone

---------

Co-authored-by: EmoGarbage404 <retron404@gmail.com>

Content.Shared/EntityEffects/EffectConditions/MobStateCondition.cs

@@ -0,0 +1,28 @@
+using Content.Shared.Mobs;
+using Content.Shared.Mobs.Components;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.EntityEffects.EffectConditions;
+
+public sealed partial class MobStateCondition : EntityEffectCondition
+{
+    [DataField]
+    public MobState Mobstate = MobState.Alive;
+
+    public override bool Condition(EntityEffectBaseArgs args)
+    {
+        if (args.EntityManager.TryGetComponent(args.TargetEntity, out MobStateComponent? mobState))
+        {
+            if (mobState.CurrentState == Mobstate)
+                return true;
+        }
+
+        return false;
+    }
+
+    public override string GuidebookExplanation(IPrototypeManager prototype)
+    {
+        return Loc.GetString("reagent-effect-condition-guidebook-mob-state-condition", ("state", Mobstate));
+    }
+}
+