Fixing issue where it's not possible to find a YouTube Channel

For some channels it's not possible to find them by channel search as the username is hidden, example "CreativeStation" https://www.youtube.com/channel/UCopU6KXnK517ycc4tZyzm-g

I have added a fallback to using the search method if no results are returned by the channel search, then get the channel ID from the first video and then do the ChannelSearch by ID.