- Reworked embed builder

- Use IEmbedBuilderService to create embed builders
- Wrapped embed builder and using IEmbedBuilder

src/NadekoBot/Modules/Gambling/WheelOfFortuneCommands.cs

@@ -50,7 +50,7 @@ namespace NadekoBot.Modules.Gambling
                 var result = await _service.WheelOfFortuneSpinAsync(ctx.User.Id, amount).ConfigureAwait(false);
 
                 var wofMultipliers = _config.WheelOfFortune.Multipliers;
-                await ctx.Channel.SendConfirmAsync(
+                await SendConfirmAsync(
 Format.Bold($@"{ctx.User.ToString()} won: {result.Amount + CurrencySign}
 
    『{wofMultipliers[1]}』   『{wofMultipliers[0]}』   『{wofMultipliers[7]}』