Hamburger menu is ugly

[pkgw]

Right now, the top-left of the app has a "hamburger menu" that you can click on to bring up a list of actions. This list is ugly and should be made better.

One tricky thing is that resulting pop up should both look and work well on both mobile and desktop. On mobile, there should be a nice set of clickable buttons that takes maximum advantage of the standard mobile screen layout. On desktop, the buttons should also be nice, and they should end up near the hamburger menu, to make them quicker to click when using a mouse. (If they're small and centered in the window, you'll have to drag your mouse a long way from the corner with the hamburger back to the center of the window.) Maybe some bug square-ish buttons? Ideally there should be a very quick animation effect to give the sense of the menu popping up.

As a side note, on mobile, it is easier to click things using your thumb, which will generally be at the bottom of the screen. Considering only that factor, basic navigation and tools like the hamburger menu should be anchored at the bottom of the screen rather than the top. But this can be a bit odd visually, and doesn't interact well with the sticky menu bar behavior that I'd like to have (#10).