Test show error toast if first load + no items

src/components/timeline.jsx

@@ -121,6 +121,9 @@ function Timeline({
         } catch (e) {
           console.error(e);
           setUIState('error');
+          if (firstLoad && !items.length && errorText) {
+            showToast(errorText);
+          }
         } finally {
           loadItems.cancel();
         }