Rename lb_libx to lb_xlib

crates/lb/src/fs.rs

@@ -3,7 +3,7 @@
 //!
 //! # Exports
 //!
-//! See [`lb_libfs`] for items exported by this library.
+//! See [`lb_fslib`] for items exported by this library.
 use luaffi::{cdef, metatype};
 use std::io;
 use tokio::fs;
@@ -16,10 +16,10 @@ use tokio::fs;
 /// local fs = require("lb:fs");
 /// ```
 #[cdef]
-pub struct lb_libfs;
+pub struct lb_fslib;
 
 #[metatype]
-impl lb_libfs {
+impl lb_fslib {
     #[new]
     extern "Lua-C" fn new() -> Self {
         Self