Show kernel options in a picker (#20274)

Closes #18341

* [x] Remove "Change Kernel" Doc link from REPL menu
* [x] Remove chevron
* [x] Set a higher min width
* [x] Include the language along with the kernel name

Future PRs will address

* Add support for Python envs (#18291, #16757, #15563)
* Add support for Remote kernels
* Project settings support (#16898)

Release Notes:

- Added kernel picker for repl

---------

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

crates/repl/src/components/kernel_list_item.rs

@@ -46,7 +46,7 @@ impl ParentElement for KernelListItem {
 
 impl RenderOnce for KernelListItem {
     fn render(self, _cx: &mut WindowContext) -> impl IntoElement {
-        ListItem::new(SharedString::from(self.kernel_specification.name.clone()))
+        ListItem::new(self.kernel_specification.name())
             .selectable(false)
             .start_slot(
                 h_flex()