On Mobile, the height of the app extends beyond the bottom of the screen, requiring the user to scroll to see the chat entry box. This should not be the case; the app should fill 100% width and 100% height, varying in accordance with the device. If we fix the New Chat issue as above, and this height problem, the mobile app will be much more usable.
On mobile, the 'sidebars' slide out. I don't mind the slide effect, but they also have transparency, which I think is weird. Let's get rid of the transparency part.