message: fix(core): remove important properties for styles
diff: }
  // todo: check first :not(.disabled) usage
  - &:not(.disabled):not(.week) span:not(.disabled) {
  + &:not(.disabled):not(.week) span:not(.disabled):not(.is-other-month) {
  cursor: pointer;
  }
  span.is-active-other-month:not(.disabled):not(.selected) {
  background-color: $highlighted;
  transition: 0s;
  - cursor: pointer !important;
  + cursor: pointer;
  }
  span.disabled,
  color: $font-color-01;
  }
  + span.is-other-month,
  + &.is-other-month span {
  + color: rgba(0, 0, 0, 0.25);
  + }
  +
  &.active {
  position: relative;
  }
  }
  - /* .is-other-month */
  - .is-other-month {
  - color: rgba(0, 0, 0, 0.25);
  - cursor: default !important;
  - }
  -
  /* .bs-datepicker-buttons */
  &-buttons {
  display: flex;
  