Save and load UKI setting (#3783)

Co-authored-by: Daniel Girtler <dgirtler@atlassian.com>

archinstall/lib/args.py

@@ -101,6 +101,7 @@ class ArchConfig:
 			'archinstall-language': self.archinstall_language.json(),
 			'hostname': self.hostname,
 			'kernels': self.kernels,
+			'uki': self.uki,
 			'ntp': self.ntp,
 			'packages': self.packages,
 			'parallel_downloads': self.parallel_downloads,
@@ -180,6 +181,8 @@ class ArchConfig:
 		if bootloader_config := args_config.get('bootloader', None):
 			arch_config.bootloader = Bootloader.from_arg(bootloader_config, args.skip_boot)
 
+		arch_config.uki = args_config.get('uki', False)
+
 		if args_config.get('uki') and (arch_config.bootloader is None or not arch_config.bootloader.has_uki_support()):
 			arch_config.uki = False