Dashboards: Fix dashboard listing when user can't list any folders (#77983)

* return empty list of folder if the user doesn't have the permissions to view folders

* fix the empty folder list initialisation

public/app/features/browse-dashboards/api/services.ts

@@ -4,6 +4,9 @@ import { getGrafanaSearcher, NestedFolderDTO } from 'app/features/search/service
 import { queryResultToViewItem } from 'app/features/search/service/utils';
 import { DashboardViewItem } from 'app/features/search/types';
 
+import { contextSrv } from '../../../core/core';
+import { AccessControlAction } from '../../../types';
+
 export const PAGE_SIZE = 50;
 
 export async function listFolders(
@@ -18,11 +21,14 @@ export async function listFolders(
 
   const backendSrv = getBackendSrv();
 
-  const folders = await backendSrv.get<NestedFolderDTO[]>('/api/folders', {
+  let folders: NestedFolderDTO[] = [];
+  if (contextSrv.hasPermission(AccessControlAction.FoldersRead)) {
+    folders = await backendSrv.get<NestedFolderDTO[]>('/api/folders', {
       parentUid: parentUID,
       page,
       limit: pageSize,
     });
+  }
 
   return folders.map((item) => ({
     kind: 'folder',