Initial commit: sway + uwsm desktop dotfiles

Nord-themed Wayland setup on sway (via uwsm), including:

- sway/swayidle/swaylock/swaddle — WM, idle/lock/inhibit
- waybar, rofi — bar and launcher
- dunst — notifications
- foot — terminal
- zsh (+fzf, syntax highlighting, autosuggestions) — shell
- mpd/rmpc/mpc, mpv — music and video
- nvim — editor (lazy.nvim)
- ly — login manager
- rbw + pinentry-rofi wrapper — Bitwarden/Vaultwarden CLI
- per-window-layout, clipvault — helper systemd services

other/sway-uwsm.desktop

@@ -0,0 +1,7 @@
+[Desktop Entry]
+Name=Sway (uwsm-managed)
+Comment=An i3-compatible Wayland compositor
+Exec=uwsm start -e -D sway sway.desktop
+TryExec=uwsm
+DesktopNames=sway
+Type=Application