style improvements

- added empty state to list
- styled scrollbars
- progressbar shows time elapsed
- timers are monospace
- prevent overflow in titles

client/src/common/state/Empty.jsx

@@ -0,0 +1,12 @@
+import { ReactComponent as Emptyimage } from '../../assets/images/empty.svg';
+import style from './Empty.module.css';
+
+export default function Empty(props) {
+  const { text } = props;
+  return (
+    <div className={style.emptyContainer}>
+      <Emptyimage className={style.empty} />
+      <span className={style.text}>{text}</span>
+    </div>
+  );
+}