Set minimum screen brightness level to 1, not 0

locker/src/main.rs

@@ -119,6 +119,7 @@ fn main() -> anyhow::Result<()> {
         }
         let conn_fd = borrow_raw_fd(conn_fd);
             
+
         let mut pfds = Vec::new();
         pfds.push(PollFd::new(borrow_raw_fd(signal_fd.as_raw_fd()), PollFlags::POLLIN));
         pfds.push(PollFd::new(conn_fd.as_fd(), PollFlags::POLLIN));