Revise the first-boot script to implement a structured approach with 13 numbered steps, allowing for better control over the execution order. Introduce two new one-shot scripts: `01-set-rotation-once.sh` and `02-set-wallpaper-once.sh`, replacing the previous single script approach. Update documentation to reflect these changes, including the new configuration options for enabling/disabling steps and the revised file structure for one-shot scripts. Enhance the dashboard to display first-boot progress, improving user feedback during the initial setup.
Introduce a configuration file (`first-boot.conf`) to allow users to override default script variables without modifying the script directly. Update the first-boot script to load this config file from multiple locations, enhancing flexibility in customization. Revise documentation to guide users on how to utilize the config file for setting variables like FILE_SERVER, HOSTNAME, and PACKAGES, improving the overall user experience during first boot operations.
