debugger: Add ability to only show stack frame entries from visible work trees (#37061)

This PR adds a toggleable filter to the stack frame list that filters
out entries that don't exist within a user's project (visible work
trees). This works by keeping a vector of entry indices that exist
within a user's project and updates the list state based on these
entries when filtering the list.

I went with this approach so the stack frame list wouldn't have to
rebuild itself whenever the filter is toggled and it could persist its
state across toggles (uncollapsing a collapse list). It was also easier
to keep track of selected entries on toggle using the vector as well.

### Preview

https://github.com/user-attachments/assets/d86c7485-c885-4bbb-bebb-2f6385674925



Release Notes:

- debugger: Add option to only show stack frames from user's project in
stack frame list

crates/dap_adapters/src/python.rs

@@ -234,6 +234,7 @@ impl PythonDebugAdapter {
                     .await
                     .map_err(|e| format!("{e:#?}"))?
                     .success();
+
                 if !did_succeed {
                     return Err("Failed to create base virtual environment".into());
                 }