First email hidden under banner

[glenn2223 (Glenn)]

I have submitted a PR to fix. My comments can be seen over at

First message on the list ecliped by the toolbar

Yes, it is related to this. The email thread is at 100% height, but the toolbar above is taking up some room. After a while, the chromium renderer just flips the overflow from the bottom to the top. Made a PR for the fix. Related: Issue with email list display