ChannelBrowser: Make cover look better for channels with less than 12 videos
ChannelBrowser: Make cover look better for channels with less than 12 videos

Use 1 instead of 2 columns in such cases.

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