refactor and cleanup sway config

overlays/sway/etc/greetd/sway

overlays/sway/etc/sway/config

overlays/sway/etc/sway/config.d/30-scratchpad-mode

overlays/sway/etc/sway/config.d/99-autostart-applications

overlays/sway/etc/sway/definitions

overlays/sway/etc/sway/inputs/default-keyboard

overlays/sway/etc/sway/inputs/default-keyboard-iso

overlays/sway/etc/sway/inputs/default-touchpad

overlays/sway/etc/sway/modes/normal-mode

overlays/sway/etc/sway/modes/resize-mode

overlays/sway/etc/sway/modes/scratchpad-mode

overlays/sway/etc/sway/outputs/default

overlays/sway/etc/sway/themes/matcha

overlays/sway/etc/sway/themes/matcha-theme