Show inlay hints on startup for every language server with work events

Language servers such as typescript-language-servers report a single
work event, ending right after server's startup.

Other servers might send more similar event, also during startup.
The rest of the events are diagnostic-related and we filter them out.

React on such events with /refresh-like hint update, that will check
only the visible part of the editor for hints and might be replaced by
other /refresh requests, if needed.

crates/project/src/project.rs

@@ -3397,6 +3397,7 @@ impl Project {
         cx: &mut ModelContext<Self>,
     ) {
         if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
+            cx.emit(Event::RefreshInlays);
             status.pending_work.remove(&token);
             cx.notify();
         }