debugger: Open debugger panel on session startup (#29186)

Now all debug sessions are routed through the debug panel and are
started synchronously instead of by a task that returns a session once
the initialization process is finished. A session is `Mode::Booting`
while it's starting the debug adapter process and then transitions to
`Mode::Running` once this is completed.

This PR also added new tests for the dap logger, reverse start debugging
request, and debugging over SSH.

Release Notes:

- N/A

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: Zed AI <ai@zed.dev>
Co-authored-by: Remco Smits <djsmits12@gmail.com>

crates/debugger_ui/src/debugger_ui.rs

@@ -16,7 +16,7 @@ mod new_session_modal;
 mod persistence;
 pub(crate) mod session;
 
-#[cfg(test)]
+#[cfg(any(test, feature = "test-support"))]
 pub mod tests;
 
 actions!(