优化文案

src/features/OnlineExam/Examing/UploadPhotos.vue

@@ -95,7 +95,9 @@
         </draggable>
 
         <div style="display: flex; justify-content: center">
-          <Button @click="modalCloseClicked">关闭</Button>
+          <Button type="primary" size="large" @click="modalCloseClicked">
+            确认
+          </Button>
         </div>
       </div>
     </Modal>