fix: 修复 NPS 组件状态共享的问题

- 脱离 hooks，避免共享一个状态

src/views/Design/components/Questions/NPS.vue

@@ -32,8 +32,9 @@
             <RateCharacter
               :config="element.config"
               :index="optionIndex"
+              v-model:model="value"
               @change="handleRateChange"
-            ></RateCharacter>
+            />
           </div>
         </div>
       </template>
@@ -45,6 +46,7 @@
 import { ref } from 'vue';
 import RateCharacter from './RateCharacter.vue';
 
+const value = defineModel('value', { default: -1, type: Number });
 const isPreview = defineModel('isPreview', { default: false, type: Boolean });
 /* const props = */ defineProps({
   index: {