Add wallpaper picker, screenshot menu, cheatsheet, waybar hw drawer

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

.config/sway/config.d/20-swayfx.conf

@@ -36,7 +36,7 @@ layer_effects "notifications" blur enable; blur_ignore_transparent enable; corne
 layer_effects "swaynag" blur enable; blur_ignore_transparent enable; corner_radius 12
 
 # Translucent terminals, glass shows through
-for_window [app_id="kitty"] opacity 0.88
+# kitty opacity/blur is set in kitty.conf
 for_window [app_id="scratch"] opacity 0.82
 for_window [app_id="(?i)thunar|org.gnome.Nautilus"] opacity 0.92
 for_window [app_id="pavucontrol|nm-connection-editor|blueman-manager"] opacity 0.92