Add setting to disable the pop-in player

app/javascript/flavours/glitch/containers/status_container.js

@@ -248,7 +248,11 @@ const mapDispatchToProps = (dispatch, { intl, contextType }) => ({
   },
 
   deployPictureInPicture (status, type, mediaProps) {
-    dispatch(deployPictureInPicture(status.get('id'), status.getIn(['account', 'id']), type, mediaProps));
+    dispatch((_, getState) => {
+      if (getState().getIn(['local_settings', 'media', 'pop_in_player'])) {
+        dispatch(deployPictureInPicture(status.get('id'), status.getIn(['account', 'id']), type, mediaProps));
+      }
+    });
   },
 
 });

app/javascript/flavours/glitch/features/local_settings/page/index.js

@@ -420,6 +420,14 @@ class LocalSettingsPage extends React.PureComponent {
         >
           <FormattedMessage id='settings.media_reveal_behind_cw' defaultMessage='Reveal sensitive media behind a CW by default' />
         </LocalSettingsPageItem>
+        <LocalSettingsPageItem
+          settings={settings}
+          item={['media', 'pop_in_player']}
+          id='mastodon-settings--pop-in-player'
+          onChange={onChange}
+        >
+          <FormattedMessage id='settings.pop_in_player' defaultMessage='Enable pop-in player' />
+        </LocalSettingsPageItem>
       </div>
     ),
   ];

app/javascript/flavours/glitch/reducers/local_settings.js

@@ -49,6 +49,7 @@ const initialState = ImmutableMap({
     letterbox        : true,
     fullwidth        : true,
     reveal_behind_cw : false,
+    pop_in_player    : true,
   }),
   notifications : ImmutableMap({
     favicon_badge : false,