- More code cleanup and codestyle updates

- Fixed some possible nullref exceptions
- Methods signatures now have up to 3 parameters before breakaing down each parameter in a separate line
- Method invocations have the same rule, except the first parameter will be in the same line as the invocation to prevent some ugliness when passing lambas as arguments
- Applied many more codestyles
- Extensions folder fully reformatted

src/NadekoBot/Services/IEmbedBuilderService.cs

@@ -13,10 +13,8 @@ public class EmbedBuilderService : IEmbedBuilderService, INService
     private readonly BotConfigService _botConfigService;
 
     public EmbedBuilderService(BotConfigService botConfigService)
-    {
-        _botConfigService = botConfigService;
-    }
-        
+        => _botConfigService = botConfigService;
+
     public IEmbedBuilder Create(ICommandContext ctx = null) 
         => new DiscordEmbedBuilderWrapper(_botConfigService.Data);