fix(dashboard): incorrect delete target

Author: ricky8955555

assets/dashboard.html

@@ -235,7 +235,7 @@ <h1 class="modal-title fs-5">Create/Update Bin</h1>
                             <input type="text" class="form-control rounded-0 border-bottom-0"
                               :value="`${name}: ${value}`" readonly>
                             <a href="#" class="input-group-text link-danger fs-5 lh-1 rounded-0 border-bottom-0"
-                              @click="delete activeBin.responding.template.headers[name]"><i class="bi bi-x"></i></a>
+                              @click="delete updatingBin.template.headers[name]"><i class="bi bi-x"></i></a>
                           </div>
                         </template>
                         <div class="input-group">