fixed waybar colors and lables; add keybinds for sway config

.config/sway/config.d/keybinds

@@ -120,6 +120,10 @@ bindsym $mod+m output $laptop toggle
 
 # play/pause media player
 bindsym XF86Favorites exec playerctl play-pause 
+bindsym $mod+bracketleft exec mpc prev
+bindsym $mod+bracketright exec mpc next
+bindsym $mod+backslash exec mpc toggle
+
 
 bindsym XF86AudioRaiseVolume exec pactl set-sink-volume @DEFAULT_SINK@ +5% \
 	&& pkill -RTMIN+10 i3blocks;