More work on refactor to interfaces

Plugins/PkmnLib.Plugin.Gen7/Scripts/Abilities/Healer.cs

@@ -6,7 +6,7 @@ namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
 /// <see href="https://bulbapedia.bulbagarden.net/wiki/Healer_(Ability)">Bulbapedia - Healer</see>
 /// </summary>
 [Script(ScriptCategory.Ability, "healer")]
-public class Healer : Script
+public class Healer : Script, IScriptOnEndTurn
 {
     private IPokemon? _pokemon;
 
@@ -19,7 +19,7 @@ public class Healer : Script
     }
 
     /// <inheritdoc />
-    public override void OnEndTurn(IScriptSource owner, IBattle battle)
+    public void OnEndTurn(IScriptSource owner, IBattle battle)
     {
         if (_pokemon?.BattleData is null)
             return;