Fixes settings popup scrollbar styling

Author: eamodio

src/webviews/apps/settings/settings.html

@@ -366,7 +366,7 @@ <h2>Jump to</h2>
 
 	<template id="token-popup">
 		<h3 class="token-popup__title">Available Tokens</h3>
-		<div class="token-popup__scroller">
+		<div class="token-popup__scroller scrollable">
 			<table class="token-popup__table">
 				<tbody>
 					<tr>