feat: Implement get folders API endpoint

packages/backend/test/mocks/rest/api/v1/folders/get-folders.js

@@ -0,0 +1,23 @@
+const getFoldersMock = async (folders) => {
+  const data = folders.map((folder) => {
+    return {
+      id: folder.id,
+      name: folder.name,
+      createdAt: folder.createdAt.getTime(),
+      updatedAt: folder.updatedAt.getTime(),
+    };
+  });
+
+  return {
+    data: data,
+    meta: {
+      count: data.length,
+      currentPage: null,
+      isArray: true,
+      totalPages: null,
+      type: 'Folder',
+    },
+  };
+};
+
+export default getFoldersMock;