add active class to navigator for custom styling

Author: devTeaa

src/CatCarousel.vue

@@ -60,7 +60,8 @@
  <div
  v-for="index in maxSlide"
  :key="index"
- :class="['cat-carousel__indicators__item']"
+ class="cat-carousel__indicators__item"
+ :class="{ 'active': (track + 1) === index }"
  :style="[indicatorsItemSizeStyle, selectedIndicator(index) && activeIndicatorStyle]"
  />
  </div>