fix: 处理sms手机号null的问题

src/views/pay/components/SmsModal.vue

@@ -5,7 +5,7 @@
         <p class="sms-icon"><cr-icon type="cross" color="#999999" @click="closeModal" /></p>
         <p class="sms-title">请输入短信验证码</p>
         <p class="sms-des">为保证您账户安全，此笔交易需要短信验证</p>
-        <p class="phone">已发送至 {{ getPhone() }}</p>
+        <p class="phone">已发送至 {{ phoneNumber }}</p>
         <cr-authcode-field
           span-size="24px"
           type="number"