When tapping on '3H' to view last 3hrs of data the display does not fill the screen

[glynhudson]

https://community.openenergymonitor.org/t/emoncms-android-app-v2-0-0-open-beta-testing/3373/16?u=glyn.hudson

[tamslinn]

Possibly related to PhilJay/MPAndroidChart#2646

[tamslinn]

Fixed