Hotfix/4.0.2 (#64)

* hotfix 4.0.2: implement playback router
* hotfix 4.0.2: fix studio clock styles
* hotfix 4.0.2: broadcast clock always
* hotfix 4.0.2: fix overflow in timer control

client/src/features/control/PlaybackControl.jsx

@@ -1,4 +1,4 @@
-import style from './PlaybackControl.module.css';
+import style from './PlaybackControl.module.scss';
 import { useEffect, useState } from 'react';
 import { useSocket } from 'app/context/socketContext';
 import PlaybackButtons from './PlaybackButtons';