Add display deletion endpoint and admin UI tweaks

app/templates/admin/company_detail.html

@@ -45,7 +45,17 @@
                 <td class="monospace small">{{ d.token }}</td>
                 <td class="text-muted">{{ d.assigned_playlist.name if d.assigned_playlist else "(none)" }}</td>
                 <td class="text-end">
-                  <a class="btn btn-outline-ink btn-sm" href="{{ url_for('display.display_player', token=d.token) }}" target="_blank">Open</a>
+                  <div class="d-inline-flex gap-2">
+                    <a class="btn btn-outline-ink btn-sm" href="{{ url_for('display.display_player', token=d.token) }}" target="_blank">Open</a>
+                    <form
+                      method="post"
+                      action="{{ url_for('admin.delete_display', display_id=d.id) }}"
+                      data-confirm="Delete display {{ d.name }}? This cannot be undone."
+                      onsubmit="return confirm(this.dataset.confirm);"
+                    >
+                      <button class="btn btn-outline-danger btn-sm" type="submit">Delete</button>
+                    </form>
+                  </div>
                 </td>
               </tr>
             {% else %}