Fix dark mode on storybook

web/.storybook/preview.js

@@ -3,14 +3,19 @@ import '../styles/global.less';
 import '../styles/theme.less';
 import '../stories/preview.scss';
 import { themes } from '@storybook/theming';
+import { DocsContainer } from './storybook-theme';
 
 export const parameters = {
   actions: { argTypesRegex: '^on[A-Z].*' },
+  docs: {
+    container: DocsContainer,
+  },
   controls: {
     matchers: {
       color: /(background|color)$/i,
       date: /Date$/,
     },
+    viewMode: 'docs',
   },
   darkMode: {
     current: 'dark',
@@ -21,6 +26,7 @@ export const parameters = {
       brandImage: 'https://owncast.online/images/logo.svg',
       brandTitle: 'Owncast',
       brandUrl: 'https://owncast.online',
+      appContentBg: '#171523',
     },
     // Override the default light theme
     light: { ...themes.normal },