Added support for defining macros in Rust within the macro system

Also fixed a lot of bugs

orchid-host/src/atom.rs

@@ -1,7 +1,7 @@
 use std::fmt;
 use std::rc::{Rc, Weak};
 
-use async_lock::OnceCell;
+use async_once_cell::OnceCell;
 use derive_destructure::destructure;
 use orchid_base::format::{FmtCtx, FmtUnit, Format, take_first_fmt};
 use orchid_base::location::Pos;
@@ -85,7 +85,7 @@ impl AtomHand {
 }
 impl Format for AtomHand {
 	async fn print<'a>(&'a self, _c: &'a (impl FmtCtx + ?Sized + 'a)) -> FmtUnit {
-		(self.0.display.get_or_init(|| async {
+		(self.0.display.get_or_init(async {
 			FmtUnit::from_api(&self.0.owner.reqnot().request(api::AtomPrint(self.0.api_ref())).await)
 		}))
 		.await