(i3) reorganised configuration

i3/.config/i3/config

@@ -79,7 +79,7 @@ bindsym $mod+Shift+d exec --no-startup-id rofi -show run
 
 # start a terminal
 bindsym $mod+Return exec ghostty
-bindsym $mod+t exec "alacritty -e tmux attach"
+bindsym $mod+t      exec ghostty -e tmux attach
 
 # change focus
 bindsym $mod+h focus left
@@ -105,10 +105,8 @@ bindsym $mod+Shift+Down move down
 bindsym $mod+Shift+Up    move up
 bindsym $mod+Shift+Right move right
 
-# split in horizontal orientation
+# set splitting strategy
 bindsym $mod+n split h
-
-# split in vertical orientation
 bindsym $mod+v split v
 
 # enter fullscreen mode for the focused container
@@ -164,17 +162,15 @@ bindsym $mod+p move workspace to output right
 
 # take screenshots
 bindsym $mod+s       exec --no-startup-id maim -su | xclip -selection clipboard -t image/png
-bindsym $mod+Shift+s exec --no-startup-id maim -su "/home/${USER}/Pictures/screenshots/$(date '+%Y%m%d_%H%M%S').png"
+bindsym $mod+Shift+s exec --no-startup-id maim -su "${HOME}/Pictures/screenshots/$(date '+%Y%m%d_%H%M%S').png"
 
-# open pavucontrol
-bindsym $mod+a exec bash select-audio-sink.sh
-
-# Use pactl to adjust volume in PulseAudio.
+# use pactl for media keys
 set $refresh_i3status killall -SIGUSR1 i3status
 bindsym XF86AudioRaiseVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ +5% && $refresh_i3status
 bindsym XF86AudioLowerVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ -5% && $refresh_i3status
 bindsym XF86AudioMute        exec --no-startup-id pactl set-sink-mute @DEFAULT_SINK@ toggle && $refresh_i3status
 bindsym XF86AudioMicMute     exec --no-startup-id pactl set-source-mute @DEFAULT_SOURCE@ toggle && $refresh_i3status
+bindsym $mod+a               exec --no-startup-id bash select-audio-sink.sh
 
 
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