Add a JS/TS debug locator (#31769)

With this, a semi-working debug session is possible from the JS/TS
gutter tasks:


https://github.com/user-attachments/assets/8db6ed29-b44a-4314-ae8b-a8213291bffc

For now, available in debug builds only as a base to improve on later on
the DAP front.

Release Notes:

- N/A

---------

Co-authored-by: Piotr Osiewicz <peterosiewicz@gmail.com>

crates/project/src/debugger/session.rs

@@ -1421,7 +1421,7 @@ impl Session {
             ));
             return cx.spawn(async move |this, cx| {
                 this.update(cx, |this, cx| process_result(this, error, cx))
-                    .log_err()
+                    .ok()
                     .flatten()
             });
         }
@@ -1430,7 +1430,7 @@ impl Session {
         cx.spawn(async move |this, cx| {
             let result = request.await;
             this.update(cx, |this, cx| process_result(this, result, cx))
-                .log_err()
+                .ok()
                 .flatten()
         })
     }