core: fix group header for search results hidden

apps/web/package-lock.json

@@ -502,7 +502,7 @@
     },
     "../desktop": {
       "name": "@notesnook/desktop",
-      "version": "3.2.0-beta.7",
+      "version": "3.2.0-beta.9",
       "hasInstallScript": true,
       "license": "GPL-3.0-or-later",
       "dependencies": {

packages/core/src/api/lookup.ts

@@ -40,6 +40,7 @@ import { getSortSelectors, groupArray } from "../utils/grouping.js";
 import { fuzzy } from "../utils/fuzzy.js";
 import { extractMatchingBlocks } from "../utils/html-parser.js";
 import { Parser } from "htmlparser2";
+import { strings } from "@notesnook/intl";
 
 type SearchResults<T> = {
   sorted: (sortOptions?: SortOptions) => Promise<VirtualizedGrouping<T>>;
@@ -303,7 +304,21 @@ export default class Lookup {
           ids: results.map((c) => c.id),
           items: results
         };
-      }
+      },
+      () =>
+        new Map([
+          [
+            0,
+            {
+              index: 0,
+              group: {
+                id: "0",
+                title: "",
+                type: "header"
+              }
+            }
+          ]
+        ])
     );
   }