Update module intro styling to be in line with other components

Resolves MS-528

client/src/components/modules/Module.vue

@@ -67,7 +67,6 @@
   import BookmarkActions from '@/components/notes/BookmarkActions';
 
   export default {
-
     props: {
       module: {
         type: Object,
@@ -137,8 +136,8 @@
 
     &__intro {
       > /deep/ p {
-        font-size: toRem(25px);
         margin-bottom: $large-spacing;
+        @include lead-paragraph;
 
         &:last-child {
           margin-bottom: 0;

client/src/pages/module/module.vue

@@ -220,7 +220,3 @@
     },
   };
 </script>
-
-<style scoped lang="scss">
-
-</style>