Appease the linters

res/css/structures/_NonUrgentToastContainer.scss

@@ -29,7 +29,7 @@ limitations under the License.
 
         // We don't use variables on the colours because we want it to be the same
         // in all themes.
-        background-color: #17191C;
+        background-color: #17191c;
         color: #fff;
     }
 }

src/stores/local-echo/EchoStore.ts

@@ -14,7 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { EventEmitter } from "events";
 import { CachedEcho } from "./CachedEcho";
 import { Room } from "matrix-js-sdk/src/models/room";
 import { RoomCachedEcho } from "./RoomCachedEcho";