fix style

src/features/OnlineExam/Examing/FaceId.vue

@@ -457,15 +457,15 @@ void startFaceVerify();
         <div style="color: white; font-weight: bold; font-size: 20px">
           {{ redoBtnMsg }}
         </div>
-        <button
+        <n-button
           v-if="redoBtnShow"
-          type="button"
-          class="qm-primary-button"
+          size="large"
+          type="info"
           :disabled="redoBtnDisabled"
           @click="startFaceVerifyClicked"
         >
           重试
-        </button>
+        </n-button>
       </div>
       <webview
         v-show="showIframe"