Add mpd keybinds and polybar module

.config/i3/config

@@ -20,9 +20,9 @@ client.focused #0087AF #0087AF #ffffff #750401 #0087AF
 bindsym XF86AudioRaiseVolume exec --no-startup-id amixer -q set Master 4%+ unmute
 bindsym XF86AudioLowerVolume exec --no-startup-id amixer -q set Master 4%- unmute
 bindsym XF86AudioMute exec --no-startup-id amixer -q set Master toggle
-bindsym XF86AudioPlay exec --no-startup-id playerctl play-pause
-bindsym XF86AudioNext exec --no-startup-id playerctl next
-bindsym XF86AudioPrev exec --no-startup-id playerctl previous
+bindsym XF86AudioPlay exec --no-startup-id playerctl play-pause || mpc toggle
+bindsym XF86AudioNext exec --no-startup-id playerctl next || mpc next
+bindsym XF86AudioPrev exec --no-startup-id playerctl previous || mpc prev
 
 # Lock
 bindsym Mod1+Ctrl+l exec "~/.scripts/lock.sh && echo mem | sudo /usr/bin/tee /sys/power/state"

.config/polybar/config

@@ -46,7 +46,7 @@ font-0 = fixed:pixelsize=12;1
 font-1 = unifont:fontformat=truetype:size=8:antialias=false;0
 font-2 = siji:pixelsize=12;1
 
-modules-left = bspwm i3
+modules-left = bspwm i3 mpd
 modules-center = 
 modules-right = xbacklight volume xkeyboard filesystem memory cpu wlan eth battery temperature date powermenu