Responsive design for votes

When capturing votes on mobile, center buttons and give them the same size.

/estimate 2h

changed milestone to %UI / UX

added Front end enhancement labels

changed the description

added Doing label

assigned to @apoyen

created branch 87-responsive-design-for-votes to address this issue

mentioned in merge request !89 (merged)

closed via merge request !89 (merged)

mentioned in commit ac7463ed