Add isbn

front/src/BookForm.vue

@@ -106,6 +106,7 @@
       <h3 class="title">{{data.title}}</h3>
       <h3 class="subtitle">{{data.author}}</h3>
       <p>{{data.summary}}</p>
+      <div class="my-5" v-if="data.isbn">ISBN: {{data.isbn}}</div>
     </div>
     <div class="column">
       <div class="iconscontainer" :class="data.read ? 'remove-border-bottom' : ''">
@@ -161,5 +162,4 @@ img {
   border-bottom: none;
 }
 
-
 </style>