Use pulse audio everywhere

To make config consistent with mute fix.

Install/Templates/i3/config

@@ -35,8 +35,8 @@ bindsym $mod+Shift+d exec --no-startup-id dmenu_run
 bindsym $mod+d exec --no-startup-id i3-dmenu-desktop
 
 # adjust volume
-bindsym XF86AudioRaiseVolume exec --no-startup-id amixer set Master unmute 2dB+
-bindsym XF86AudioLowerVolume exec --no-startup-id amixer set Master unmute 2dB-
+bindsym XF86AudioRaiseVolume exec --no-startup-id pactl set-sink-volume 0 +2dB
+bindsym XF86AudioLowerVolume exec --no-startup-id pactl set-sink-volume 0 -2dB
 bindsym XF86AudioMute exec --no-startup-id pactl set-sink-mute 0 toggle
 
 # adjust luminosity