Adopt eslint-config-matrix-org & bump deps

frontend/src/globals.d.ts

@@ -0,0 +1,22 @@
+// Copyright 2023 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+declare module "*.svg" {
+  const ReactComponent: React.FunctionComponent<
+    React.SVGAttributes<SVGElement>
+  >;
+  export default ReactComponent;
+}
+
+declare module "*.module.css";