Change starting anchor for participants list

[Hobart2967]

I would like to have an option to change the growing direction.

For me, I'd like to have the list of players attached to a lower left corner of the screen. This means I need to predict the possible count of players in the room, as I also love to have the click-through feature turned on.

Therefore, I would love to set something like "Please start growing the list from bottom to top".

[Hacksore]

I think @typesafeui has reported this to me on discord so this is a good idea.