Widgets' margin adjusts when window width changes
Widgets' margin adjusts when window width changes

When the width of the overview page falls below a certain threshold,
the margin of contained widgets is adjusted to provide a better UX.

[endlessm/eos-sdk#2986]

endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib