Minor UX fixes.

frontend/src/app/components/transaction/transaction.component.html

@@ -61,7 +61,7 @@
               <ng-template #firstSeenTmpl>
                 <tr>
                   <td>First seen</td>
-                  <td><app-time-since [time]="transactionTime"></app-time-since> ago</td>
+                  <td><i><app-time-since [time]="transactionTime"></app-time-since> ago</i></td>
                 </tr>
               </ng-template>
             </ng-template>