diagnostics: Ensure that clean state is not shown when tab content in…

…dicates problems in workspace

crates/diagnostics/src/diagnostics.rs

@@ -88,7 +88,7 @@ const DIAGNOSTICS_UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);
 
 impl Render for ProjectDiagnosticsEditor {
     fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
-        let child = if self.path_states.is_empty() {
+        let child = if self.summary.warning_count + self.summary.error_count > 0 {
             div()
                 .key_context("EmptyPane")
                 .bg(cx.theme().colors().editor_background)