Add a button in the menu to switch the camera
Merge pull request #214 from tOkeshu/switch-camera

Add a button in the menu to switch the camera
Adding a bottom for small screens, and adding overflow scroll. Fixes #216
Merge pull request #217 from thethp/master

Adding a bottom for small screens, and adding overflow scroll. Fixes #216
Remove camera failure dialog. Same retry can be achieved with the hamburger menu now.
updated messaging for invalid fingerprint