Add new hit effect flag for hit effects that only show animations

Fix SetMP setting MaxMP instead of MP

Fix substate updates not being sent

data/scripts/commands/EsunaMagic.lua

@@ -0,0 +1,5 @@
+function onEventStarted(player, command, triggerName, arg1, arg2, arg3, arg4, targetActor, arg5, arg6, arg7, arg8)
+	player.Cast(command.actorId, targetActor);
+    
+	player:endEvent();
+end

data/scripts/commands/magic/esuna.lua

@@ -0,0 +1,22 @@
+require("global");
+require("magic");
+require("battleutils");
+
+function onMagicPrepare(caster, target, spell)
+    if not target.statusEffects.HasStatusEffectsByFlag(StatusEffectFlags.LoseOnDeath) then
+        return -1
+    end
+
+    return 0;
+end;
+
+function onMagicStart(caster, target, spell)
+    return 0;
+end;
+
+function onSkillFinish(caster, target, skill, action, actionContainer)
+
+    removeEffect = target.statusEffects.GetRandomEffectByFlag(StatusEffectFlags.LoseOnDeath)
+
+    target.statusEffects.RemoveStatusEffect(removeEffect, actionContainer, 30331);
+end;