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/project/src/debugger/breakpoint_store.rs

@@ -218,7 +218,7 @@ impl BreakpointStore {
         }
     }
 
-    fn abs_path_from_buffer(buffer: &Entity<Buffer>, cx: &App) -> Option<Arc<Path>> {
+    pub fn abs_path_from_buffer(buffer: &Entity<Buffer>, cx: &App) -> Option<Arc<Path>> {
         worktree::File::from_dyn(buffer.read(cx).file())
             .and_then(|file| file.worktree.read(cx).absolutize(&file.path).ok())
             .map(Arc::<Path>::from)