+using picom (compositor) now, alacritty -> kitty

I'm now using picom for my compositor, which is buggy for alacritty when
doing restarts. Kitty doesn't suffer from this. Kitty has slight lag in
comparison to alacritty, but I'll take slow down that for the benefit of
a compositor.

i3.conf

@@ -52,7 +52,7 @@ bindsym $mod+v exec --no-startup-id xbacklight -5
 floating_modifier $mod
 
 # start a terminal
-bindsym $mod+Return exec alacritty
+bindsym $mod+Return exec kitty
 
 # kill focused window
 bindsym $mod+Shift+q kill
@@ -169,6 +169,7 @@ bindsym $mod+r mode "resize"
 # Aesthetics
 client.focused              #4c7899 #3a3a3a #ffffff #2e9ef4   #285577
 client.focused_inactive     #333333 #5f676a #ffffff #2e9ef4   #285577
+exec $HOME/Scripts/start_picom
 
 bar {
         status_command i3status