Stick REPL icon in quick action bar (#14064)

REPL Quick Actions

<img width="325" alt="image"
src="https://github.com/zed-industries/zed/assets/836375/faaf4c8f-ef12-4417-a9dd-158d5beae8ba">

When the Jupyter REPL is enabled and a kernel is available, show the
status in the editor bar:

![quick action bar
repl](https://github.com/zed-industries/zed/assets/836375/f3445283-f1fc-4714-895b-7aa842d4ab76)


Release Notes:

- N/A

---------

Co-authored-by: Nate Butler <iamnbutler@gmail.com>

crates/repl/src/repl.rs

@@ -11,7 +11,11 @@ mod session;
 mod stdio;
 
 pub use jupyter_settings::JupyterSettings;
-pub use runtime_panel::RuntimePanel;
+pub use kernels::{Kernel, KernelSpecification};
+pub use runtime_panel::Run;
+pub use runtime_panel::{RuntimePanel, SessionSupport};
+pub use runtimelib::ExecutionState;
+pub use session::Session;
 
 fn zed_dispatcher(cx: &mut AppContext) -> impl Dispatcher {
     struct ZedDispatcher {