- Migrated to twitch helix api for stream notifications

- Added 2 new fields to creds.yml -> TwitchClientId and TwitchClientSecret
- Users now have to provide them in order to use twitch stream notifications as Twitch is shutting down old api on 18th of February 2022
- Possibly fixed some issues with streams randomly getting cleared
- Added an incomplete trovo stream notification provider

src/NadekoBot/Modules/Searches/_Common/StreamNotifications/Providers/PicartoProvider.cs

@@ -39,11 +39,11 @@ public class PicartoProvider : Provider
         return Task.FromResult<StreamData?>(null);
     }
 
-    public override async Task<StreamData?> GetStreamDataAsync(string id)
+    public override async Task<StreamData?> GetStreamDataAsync(string login)
     {
         var data = await GetStreamDataAsync(new List<string>
         {
-            id
+            login
         });
 
         return data.FirstOrDefault();