bug: unable to reopen popups

There is logic that prevents the user from opening a popup (i.e. namazon, workshop, achievements...)

It's a simple boolean check that locks when you open a popup, and unlocks when you close it via the close button. It's currently possible to close the popup by changing the scene tho, which circumvents the current close logic, and leaves the user in a state unable to open a new popup.

Since this is global, it also persists throughout starting a new game, as long as the program itself wasn't closed in between.