Don't change split header for whisper
Don't change split header for whisper

Prevent normal channel split headers from changing colours when receiving a whisper
Cranken/chatterino2,fourtf/chatterino2,hemirt/chatterino2,hemirt/chatterino2,hemirt/chatterino2,fourtf/chatterino2,fourtf/chatterino2,hemirt/chatterino2,Cranken/chatterino2,Cranken/chatterino2,Cranken/chatterino2