Closes twbs#26300: Add cursor pointer to carousel indicators

Author: Varunram

scss/_carousel.scss

@@ -189,6 +189,7 @@
     margin-right: $carousel-indicator-spacer;
     margin-left: $carousel-indicator-spacer;
     text-indent: -999px;
+    cursor: pointer;
     background-color: rgba($carousel-indicator-active-bg, .5);
 
     // Use pseudo classes to increase the hit area by 10px on top and bottom.