Add clipboard, idle timeouts, night light, bluetooth, and waybar improvements

- Add cliphist clipboard manager with wofi picker (Mod+Shift+C)
- Add wl-paste watch for clipboard history
- Add swayidle idle timeouts: blank at 5min, lock at 10min
- Add blueman-applet autostart (bluetooth tray)
- Add wlsunset night light for Vancouver (49.2N, 123.1W)
- Add clipboard-picker script and symlink in install.sh
- Waybar: add battery charging format, warning/critical states, tray config
- Waybar CSS: add warning (yellow) and critical (red) battery colors

install.sh

@@ -21,6 +21,7 @@ ln -sf "$(pwd)/alacritty/alacritty.toml" ~/.config/alacritty/alacritty.toml
 echo "==> Installing scripts"
 mkdir -p ~/.local/bin
 ln -sf "$(pwd)/scripts/powermenu.sh" ~/.local/bin/powermenu
+ln -sf "$(pwd)/scripts/clipboard.sh" ~/.local/bin/clipboard-picker
 
 echo "==> Enabling systemd user services"
 mkdir -p ~/.config/systemd/user