This way we don't show that annoying animation, and we now occupy the
entire available width. Otheriwse if you had text which was required
scrolling, but only had 1 word in each line, then you couldn't scroll by
dragging on the empty area as the widget didn't occupy that space.
This is the simplest way I could find of showing a placeholder and
loading screen while the image was downloading. I'm not sure if I want
to cache the images locally.
Also, this adds lots of dependencies, which I'm not too comfortable
with.
Fixes#58
I've tried adding a black space under the FAB, but that just reduces the
available vertical space while typing. This does reduce the usability
for small notes, as clicking on the FAB is much easier than clicking on
top-right back button or clicking the back button twice on Android.
