feat(webui): synchronize external DataGrid queries

webui/tests/data-grid-actions.test.tsx

@@ -117,3 +117,15 @@ const clearedFilterMarkup = renderToStaticMarkup(
 );
 assertEqual(clearedFilterMarkup.includes("Ordinary row"), true, "clearing filters restores the first unfiltered row");
 assertEqual(/of(?:<!-- -->)?\s*(?:<!-- -->)?6/.test(clearedFilterMarkup), true, "clearing filters restores the full pagination total");
+
+const externalShortcutMarkup = renderToStaticMarkup(
+  <DataGrid
+    id="external-query-shortcut-regression"
+    rows={filterRows}
+    columns={filterColumns}
+    getRowKey={(row) => row.id}
+    query={{ sort: null, filters: { name: "target" } }}
+  />
+);
+assertEqual(externalShortcutMarkup.includes("Target alpha"), true, "an external count shortcut synchronizes the grid query");
+assertEqual(externalShortcutMarkup.includes("Ordinary row"), false, "the synchronized query does not disagree with visible rows");