Manual impl of Debug on Token (#11958)

## Summary

I look at the token stream a lot, not specifically in the playground but
in the terminal output and it's annoying to scroll a lot to find
specific location. Most of the information is also redundant.

The final format we end up with is: `<kind> <range> (flags = ...)` e.g.,
`String 0..4 (flags = BYTE_STRING)` where the flags part is only
populated if there are any flags set.

crates/ruff_wasm/src/lib.rs

@@ -261,7 +261,7 @@ impl Workspace {
     pub fn tokens(&self, contents: &str) -> Result<String, Error> {
         let parsed = parse_unchecked(contents, Mode::Module);
 
-        Ok(format!("{:#?}", parsed.tokens()))
+        Ok(format!("{:#?}", parsed.tokens().as_ref()))
     }
 }