- Cleaned up completed todos

- Config Data won't be copied every time it's accessed now, but YamlDotNet doesnt' support records, so data is dangerously mutable, needs solution

src/NadekoBot/Services/CommandHandler.cs

@@ -40,7 +40,6 @@ namespace NadekoBot.Services
         public ConcurrentHashSet<ulong> UsersOnShortCooldown { get; } = new ConcurrentHashSet<ulong>();
         private readonly Timer _clearUsersOnShortCooldown;
 
-        // todo move behaviours to a separate service
         public CommandHandler(
             DiscordSocketClient client,
             DbService db,

src/NadekoBot/Services/Settings/ConfigServiceBase.cs

@@ -28,7 +28,9 @@ namespace NadekoBot.Services
         private readonly TypedKey<TSettings> _changeKey;
 
         protected TSettings _data;
-        public TSettings Data => CreateCopy();
+        
+        // todo this has to be protected from mutation
+        public TSettings Data => _data;
         
         public abstract string Name { get; }