Make blacklistUnverifiedDevices override the level order

Signed-off-by: Travis Ralston <travpc@gmail.com>

src/components/structures/MatrixChat.js

@@ -1104,6 +1104,7 @@ module.exports = React.createClass({
                     SettingLevel.ROOM_DEVICE,
                     "blacklistUnverifiedDevices",
                     room.roomId,
+                    /*explicit=*/true,
                 );
                 room.setBlacklistUnverifiedDevices(blacklistEnabled);
             }