- 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/Modules/Searches/Services/StreamNotificationService.cs

@@ -3,7 +3,6 @@ using NadekoBot.Modules.Searches.Common;
 using NadekoBot.Modules.Searches.Common.StreamNotifications;
 using NadekoBot.Services.Database.Models;
 using StackExchange.Redis;
-using NadekoBot.Common.Collections;
 using NadekoBot.Db;
 using NadekoBot.Db.Models;
 
@@ -477,9 +476,7 @@ public sealed class StreamNotificationService : INService
     }
 
     public Task<StreamData> GetStreamDataAsync(string url)
-    {
-        return _streamTracker.GetStreamDataByUrlAsync(url);
-    }
+        => _streamTracker.GetStreamDataByUrlAsync(url);
 
     private HashSet<FollowedStream> GetLocalGuildStreams(in StreamDataKey key, ulong guildId)
     {