Fixed notifications when actions are taken within the same channel..

main.go

@@ -140,6 +140,10 @@ func (s *Server) voiceStatus(ds *discordgo.Session, m *discordgo.VoiceStateUpdat
 	case len(m.ChannelID) == 0:
 		state = Leaving
 	case m.BeforeUpdate != nil:
+		if m.BeforeUpdate.ChannelID == m.ChannelID {
+			// Action like muting caused new voice state, but in the same channel.
+			return
+		}
 		state = Switching
 	}