Replace all raw string comparisons with StringKey, source generator that creates cache keys for all names for Gen7 plugin

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/MeanLook.cs

@@ -5,12 +5,10 @@ namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
 [Script(ScriptCategory.Move, "mean_look")]
 public class MeanLook : Script, IScriptOnSecondaryEffect
 {
-    private static StringKey GhostTypeName => new("ghost");
-
     /// <inheritdoc />
     public void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
     {
-        if (target.Types.Any(x => x.Name == GhostTypeName))
+        if (target.Types.Any(x => x.Name == TypeNames.Ghost))
             return;
         var targetEffect = target.Volatile.Add(new MeanLookEffectTarget());
         if (targetEffect == null)