Roadmap v1.0.0

[webketje]

• #13
• change brightness toggle to percentage ? 0/1 instead of scale 0-255
• Update FPM
• Test & check with tuxedo_keyboard new features?
• Integrate file watcher to live-update the UI (eg when backlight is changed through keyboard or command-line): see https://zackonengineering.com/python-watchdog-file-watcher/