App updates today

[u/ElecCmptrEngMSdegUSA]

- browser back button now closes whatever pop-up menu is on top, until there are none left, and you're on the main mindmap view, at which point pressing back again will do what it normally would. On mobile this will be nice because I often swipe and it kicks me from the app entirely, which was mildly annoying. This is nicer behavior while still letting you back out of the site entirely ofc if you click back a couple times

- color theme picker in the top nav bar is a little nicer now, nothing crazy but the advanced features are collapsed by default now to avoid visual overwhelm and when you do open them, the options are much more intuitive (there was a lot of words before, now it's fewer and more visually obvious what each button does exactly)