<message>Update the cloud-init scripts to improve GTK theme settings by enforcing dark mode through gsettings and preserving the icon theme for a cohesive user experience. Additionally, enhance the first-boot script to install a Chromium kiosk launcher icon on the desktop and in the application menu, along with a five-tap close functionality for Chromium. These changes streamline the user interface and ensure a consistent dark theme across applications and the taskbar.
Update the one-shot script to set screen rotation using kanshi based on kernel command line parameters, replacing the previous wlr-randr method. The script now writes the configuration to ~/.config/kanshi/config and sets the GTK dark theme (PiXnoir or Adwaita-dark) at first login. Additionally, enhance documentation to reflect these changes and clarify the role of the new script in the first-boot process.
