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/quick_action_bar/src/quick_action_bar.rs

@@ -20,8 +20,11 @@ use workspace::{
     item::ItemHandle, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView, Workspace,
 };
 
+mod repl_menu;
+
 pub struct QuickActionBar {
     buffer_search_bar: View<BufferSearchBar>,
+    repl_menu: Option<View<ContextMenu>>,
     toggle_settings_menu: Option<View<ContextMenu>>,
     toggle_selections_menu: Option<View<ContextMenu>>,
     active_item: Option<Box<dyn ItemHandle>>,
@@ -40,6 +43,7 @@ impl QuickActionBar {
             buffer_search_bar,
             toggle_settings_menu: None,
             toggle_selections_menu: None,
+            repl_menu: None,
             active_item: None,
             _inlay_hints_enabled_subscription: None,
             workspace: workspace.weak_handle(),
@@ -290,9 +294,13 @@ impl Render for QuickActionBar {
             .child(
                 h_flex()
                     .gap(Spacing::Medium.rems(cx))
+                    .children(self.render_repl_menu(cx))
                     .children(editor_selections_dropdown)
                     .child(editor_settings_dropdown),
             )
+            .when_some(self.repl_menu.as_ref(), |el, repl_menu| {
+                el.child(Self::render_menu_overlay(repl_menu))
+            })
             .when_some(
                 self.toggle_settings_menu.as_ref(),
                 |el, toggle_settings_menu| {