Support variable screen size

[pb1051]

When looking at FH in landscape on my tablet, each graph takes the whole screen, but they could be laid out in a more efficient manner to be able to see multiple at once like on a computer monitor.

[sterrenb]

Hello @pb1051 👋 - Thanks for opening an issue!

Cool to hear that you have the app running on a tablet. I haven't tried other form factors in particular, so I can imagine that the scaling is off.

Something to help realize this: https://pub.dev/packages/device_simulator

[lordvins226]

Device Preview can be use for this issue

[sterrenb]

Note to self: https://pub.dev/packages/flutter_staggered_grid_view seems useful