add admin panel

Co-authored-by: Jan-Marlon Leibl <jleibl@proton.me>
Reviewed-on: #20

templates/admin/customer_tickets.html.twig

@@ -0,0 +1,31 @@
+<table class="table">
+    <thead>
+    <tr>
+        <th>Name</th>
+        <th>Ernährung</th>
+        <th>Preis</th>
+        <th>Anmerkung</th>
+        <th></th>
+    </tr>
+    </thead>
+    <tbody>
+    {% for ticket in field.value %}
+        <tr>
+            <td>{{ (ticket.type | ticket)['name'] }}</td>
+            <td>{{ ticket.foodType | food }}</td>
+            <td>{{ (ticket.type | ticket)['price'] }}€</td>
+            <td>{{ ticket.note }}</td>
+            <td>
+                <a href="{{ path('admin', { entity: 'App\Entity\Ticket', action: 'detail', id: ticket.id }) }}"
+                   class="btn btn-info btn-sm">
+                    View
+                </a>
+            </td>
+        </tr>
+    {% else %}
+        <tr>
+            <td colspan="4" class="text-center">No Orders Found</td>
+        </tr>
+    {% endfor %}
+    </tbody>
+</table>