Fix MatrixClientPeg imports

src/autocomplete/NotifProvider.js

@@ -17,7 +17,7 @@ limitations under the License.
 import React from 'react';
 import AutocompleteProvider from './AutocompleteProvider';
 import { _t } from '../languageHandler';
-import MatrixClientPeg from '../MatrixClientPeg';
+import {MatrixClientPeg} from '../MatrixClientPeg';
 import {PillCompletion} from './Components';
 import * as sdk from '../index';
 import type {Completion, SelectionRange} from "./Autocompleter";