message: add hack to fix unwanted free space in mdl checkboxes
diff: @@ -227,6 +227,16 @@ mdl-simple-tooltip div {
  background-color: transparent;
  }
  +.mdl-checkbox .mdl-checkbox__box-outline {
  + @include material-animation-default(0.28s);
  + transition-property: box-shadow;
  + box-shadow: inset 0 0 0 0 $checkbox-color;
  +}
  +
  +.mdl-checkbox.is-checked .mdl-checkbox__box-outline {
  + box-shadow: inset 0 0 0 1px $checkbox-color;
  +}
  +
  .card-popover {
  top: 0;
  right: 50px;
  