More work on refactor to interfaces

Plugins/PkmnLib.Plugin.Gen7/Scripts/Side/FriendGuardEffect.cs

@@ -1,7 +1,7 @@
 namespace PkmnLib.Plugin.Gen7.Scripts.Side;
 
 [Script(ScriptCategory.Side, "friend_guard")]
-public class FriendGuardEffect : Script
+public class FriendGuardEffect : Script, IScriptChangeIncomingMoveDamage
 {
     private readonly HashSet<IPokemon> _placerPokemon = [];
 
@@ -20,7 +20,7 @@ public class FriendGuardEffect : Script
     }
 
     /// <inheritdoc />
-    public override void ChangeIncomingMoveDamage(IExecutingMove move, IPokemon target, byte hit, ref uint damage)
+    public void ChangeIncomingMoveDamage(IExecutingMove move, IPokemon target, byte hit, ref uint damage)
     {
         var modifier = Math.Pow(0.75f, _placerPokemon.Count);
         damage = (uint)(damage * modifier);