Why do cards have an unconditional box-shadow?

Created by: atu-record

I think it's not very wise to force a mandatory border for cards

at least I would suggest to make it depend on the $enable-shadows flag

line 12

  // Doesn't use mixin so that cards always have a "border"
  box-shadow: inset 0 0 0 $card-border-width $card-border-color;