Always show tabs when new search filter UI is active

This makes the UI more consistent across filter active/inactive states and
removes the need to show a total number of annotations in the search result
summary, since that continues to be visible on the tabs when a filter is active.

src/sidebar/components/SidebarView.tsx

@@ -69,7 +69,8 @@ function SidebarView({
 
   const searchPanelEnabled = store.isFeatureEnabled('search_panel');
   const showFilterStatus = !hasContentError && !searchPanelEnabled;
-  const showTabs = !hasContentError && !hasAppliedFilter;
+  const showTabs =
+    !hasContentError && (searchPanelEnabled || !hasAppliedFilter);
 
   // Show a CTA to log in if successfully viewing a direct-linked annotation
   // and not logged in