Added a new table header and column to display a test membership indicator in MembersView.vue.

frontend/src/views/MembersView.vue

@@ -42,6 +42,7 @@
                 <thead>
                     <tr>
                         <th>Bild</th>
+                        <th>Testm.</th>
                         <th>Name, Vorname</th>
                         <th>Adresse</th>
                         <th>Geburtsdatum</th>
@@ -58,6 +59,7 @@
                                     style="max-width: 50px; max-height: 50px;"
                                     @click.stop="openImageModal(member.imageUrl)">
                             </td>
+                            <td>{{ member.testMembership ? '*' : '' }}</td>
                             <td>{{ member.lastName }}, {{ member.firstName }}</td>
                             <td>{{ member.street }}, {{ member.city }}</td>
                             <td>{{ getFormattedBirthdate(member.birthDate) }}</td>