sidebar mobile styling tweaks

vue-theme/src/components/sidebars/sidebar.vue

     width: 100%
     p, h3
         margin: 0
+        padding: 0 0 $ms--4 0
+
     > section
         > *
             padding: $ms-0
     ul
         list-style: none  
         display: flex
+        flex-direction: column
+        flex-wrap: wrap 
         li
             padding: 0 $ms-0 0 0
             img