VideoOverview: Fix cover switching when going out of offline mode.
VideoOverview: Fix cover switching when going out of offline mode.

Proper cover should always be requested when application is activated.

RobertMe/sailfish-ytplayer,RobertMe/sailfish-ytplayer,RobertMe/sailfish-ytplayer,RobertMe/sailfish-ytplayer,tworaz/sailfish-ytplayer,RobertMe/sailfish-ytplayer,tworaz/sailfish-ytplayer,tworaz/sailfish-ytplayer,tworaz/sailfish-ytplayer,tworaz/sailfish-ytplayer