debugger: Add run to cursor and evaluate selected text actions (#28405)

## Summary

### Actions

This PR implements actions that allow a user to "run to cursor" and
"evaluate selected text" while there's an active debug session and
exposes the functionality to the UI as well.

- Run to cursor: Can be accessed by right clicking on the gutter
- Evaluate selected text: Can be accessed by selecting text then right
clicking in the editor

### Bug fixes

I also fixed these bugs as well

- Panic when using debugger: Stop action
- Debugger actions command palette filter not working properly in all
cases
- We stopped displaying the correct label in the session's context menu
when a session was terminated

Release Notes:

- N/A

---------

Co-authored-by: Max Brunsfeld <max@zed.dev>
Co-authored-by: Remco Smits <djsmits12@gmail.com>

crates/debugger_ui/src/session/running/console.rs

@@ -141,7 +141,7 @@ impl Console {
             state.evaluate(
                 expression,
                 Some(dap::EvaluateArgumentsContext::Variables),
-                self.stack_frame_list.read(cx).current_stack_frame_id(),
+                self.stack_frame_list.read(cx).selected_stack_frame_id(),
                 None,
                 cx,
             );
@@ -384,7 +384,7 @@ impl ConsoleQueryBarCompletionProvider {
     ) -> Task<Result<Option<Vec<Completion>>>> {
         let completion_task = console.update(cx, |console, cx| {
             console.session.update(cx, |state, cx| {
-                let frame_id = console.stack_frame_list.read(cx).current_stack_frame_id();
+                let frame_id = console.stack_frame_list.read(cx).selected_stack_frame_id();
 
                 state.completions(
                     CompletionsQuery::new(buffer.read(cx), buffer_position, frame_id),