Rename Sorting Option Texts to "Oldest first" and "Latest update first" on Browse Pages#326

The “Ascending” and “Descending” option for sorting the My Board screen is not intuitive.

It is currently considering the date to confirm “ascendent” and “descendent” but what appears on the screen is “time since last update” so we would expect the order to be the exact opposite of what appears now.

Instead, I suggest changing to:

“Latest update first” and “Oldest first”