When I have a Picture-in-Picture video I like to open it and float
it on top of everything so it's always visible. But when it becomes
inactive the background shines through like with all other inactive
windows. This patch makes the opacity to 1.0 so the background doesn't
shine through and it's easier to watch the video.
It felt always random where a new window would be opened, turns
out it was set to smart_split so it would check where tho mouse
cursor is and split to that side.
With this change it will always open right/bottom.
