Add preference to always display sensitive media (#6448)

app/javascript/mastodon/features/video/index.js

@@ -4,6 +4,7 @@ import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
 import { throttle } from 'lodash';
 import classNames from 'classnames';
 import { isFullscreen, requestFullscreen, exitFullscreen } from '../ui/util/fullscreen';
+import { displaySensitiveMedia } from '../../initial_state';
 
 const messages = defineMessages({
   play: { id: 'video.play', defaultMessage: 'Play' },
@@ -107,7 +108,7 @@ export default class Video extends React.PureComponent {
     fullscreen: false,
     hovered: false,
     muted: false,
-    revealed: !this.props.sensitive,
+    revealed: !this.props.sensitive || displaySensitiveMedia,
   };
 
   setPlayerRef = c => {