The systemd service for scheduling the screen on/off was misspelled as `kiosk-sechedule-screen.service`.
This commit renames the file to `kiosk-schedule-screen.service` and updates the build script to enable the correctly named service.
Readme: Add x86 compatibility
kiosk: Add tmpfs for /var/lib/private
kiosk: Add custom motd
kiosk: Add custom issue string
kiosk: Fix systemd-logind and systemd-timesyncd readonly handling
ntpdate: Autorestart on failure
x86: Change EFI partition type to "Basic Data Partition" (was ESP)
x86: Fix wpasupplicant package name
x86: Set custom grub OS name
CI: Combine workflows for all architectures