Page count toast is obscured on displays with rounded corners

[pretty-cosmic]

The page count toast is partially clipped off the screen because the 10 pixel padding isn't enough for displays with rounded corners. Android has the ability to get the corner insets to avoid this.

[thestinger]

It shouldn't be a toast anymore anyway.

[pretty-cosmic]

Would you rather the page count popup be an animated TextView, or something like it? I do see a Snackbar was being considered in open issue #30. However, after looking into it I don't think using a Snackbar is the right approach.

[thestinger]

A snackbar isn't the right approach but we should stop using a toast.