Add guards (#22)

apps/client/src/app/pages/about/about-page.html

@@ -13,7 +13,7 @@
             <a href="https://dotsilver.ch">Thomas Kaul</a>.
             <ng-container *ngIf="lastPublish">
               This instance has been last published on {{ lastPublish
-              }}</ng-container
+              }}.</ng-container
             >
           </p>
           <p>

apps/client/src/app/pages/admin/admin-page.html

@@ -99,13 +99,13 @@
                   {{ userItem.createdAt | date: defaultDateFormat }}
                 </td>
                 <td class="mat-cell pr-2 py-2 text-truncate">
-                  {{ userItem._count.Order }}
+                  {{ userItem._count?.Order }}
                 </td>
                 <td class="mat-cell pr-2 py-2 text-truncate">
-                  {{ userItem.Analytics.activityCount }}
+                  {{ userItem.Analytics?.activityCount }}
                 </td>
                 <td class="mat-cell pr-2 py-2 text-truncate">
-                  {{ formatDistanceToNow(userItem.Analytics.updatedAt) }}
+                  {{ formatDistanceToNow(userItem.Analytics?.updatedAt) }}
                 </td>
               </tr>
             </tbody>