[arkdep] skip non-existing files from migration

Sometimes a file listed in migrate_files list does not exist. so skip it and avoid an error output.

arkdep

@@ -1040,8 +1040,9 @@ deploy () {
 	if [[ ${#migrate_files[@]} -ge 1 ]] && [[ ! -n $ARKDEP_ROOT ]]; then
 		printf '\e[1;34m-->\e[0m\e[1m Migrating local files to new deployment\e[0m\n'
 		for file in ${migrate_files[@]}; do
+			[ ! -f $file ] && continue
 			printf "Copying $file\n"
-			cp -r /$file $arkdep_dir/deployments/${data[0]}/rootfs/${file%/*}
+			cp -r $file $arkdep_dir/deployments/${data[0]}/rootfs/${file%/*}
 		done
 	fi