only print traffic if traffic not 0 & var others

modified:   .config/coc/extensions/db.json
	modified:   .config/ncmpcpp/config
	modified:   .config/qutebrowser/quickmarks
       	modified:   .local/bin/bt
	modified:   .local/bin/statusbar/nettraf

.config/ncmpcpp/config

@@ -30,7 +30,7 @@ lyrics_directory = ~/.config/lyrics
 #
 ## Needed for tag editor and file operations to work.
 ##
-mpd_music_dir = "~/msc"
+mpd_music_dir = "~/drv/Music"
 #
 #mpd_crossfade_time = 5
 #