Toolbar contextual view

[drewvolz]

From @hawkrives: #6035 (comment)

I'm thinking that it'd be nice to put a small toolbar at the bottom, like Mail.app has, on any view without a tab bar. I think it would show the last-updates time and maybe an (i) icon to tell you where we get the data from (IE it would replace the current ListFooterComponent).

[hawkrives]

This would solve the problem of SafeAreaView, at the expense of ~65% of a row's height. We wouldn't need one on any view with a tab bar, either.

[drewvolz]

I think that's true for portrait mode. In landscape we'd still need safearea to not run into the notch on both sides.