Choosing a view and finding the board's default again after every reload is
the board forgetting something the reader clearly meant.
The choice lives in `sessionStorage`, not on the account. A view is how one
person is looking at a board right now, not a property of the board: two
windows may hold the same board open as a grid and as a list, and neither is
wrong. A stored preference would make one of them change under the other's
hands.
The context is stored alongside and has to match on the way back out, so a
view picked in the archive does not follow the board into its own context. A
view this build no longer knows falls through to the board's default, as does
anything stored while the browser refuses to keep it.
Daniel Hiller
2030722242