Deduplicate Code Actions Menu

[parker-codes]

I couldn't find a more applicable discussion category, so I chose this "Help and General" one.

The Issue

The very small bug I found is that the code actions popup has duplicate items:

Proposed Fix

A simple deduplication should fix this, at it's source.

I adjusted the new() function to dedupe with a HashSet based on the excerpt_id and the action.lsp_action.title() and it works. Let me know if this is a good solution and I'll submit the PR. I just wanted to check first.

pub(crate) fn new(
	tasks: Option<ResolvedTasks>,
	actions: Option<Rc<[AvailableCodeAction]>>,
	debug_scenarios: Vec<DebugScenario>,
	context: TaskContext,
) -> Self {
    let deduped_actions = actions.map(|actions_rc| {
        let mut seen = HashSet::new();
        let deduped: Vec<_> = actions_rc
            .iter()
            .filter(|a| {
                let key = (a.excerpt_id, a.action.lsp_action.title());
                seen.insert(key)
            })
            .cloned()
            .collect();
        Rc::from(deduped.into_boxed_slice())
    });

    Self {
        tasks: tasks.map(Rc::new),
        actions: deduped_actions,
        debug_scenarios,
        context,
    }
}