Tidy up DAP initialization (#28730)

To make DAP work over SSH we want to create the binary
at the project level (so we can wrap it in an `ssh` invocation
transparently).

This means not pushing the adapter down into the session, and resolving
more information ahead-of-time.

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Piotr <piotr@zed.dev>

Release Notes:

- N/A

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Piotr <piotr@zed.dev>
Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Anthony <anthony@zed.dev>

crates/debugger_ui/src/new_session_modal.rs

@@ -146,7 +146,7 @@ impl NewSessionModal {
                 {
                     this.start_debug_session(debug_config, cx)
                 } else {
-                    this.start_debug_session(config.into(), cx)
+                    this.start_debug_session(config, cx)
                 }
             })?;
             let spawn_result = task.await;