修改登录页标题

src/views/login.vue

 <template>
   <div class="login">
     <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
-      <h3 class="title">{{ $t('捷道后台管理系统') }}</h3>
+      <h3 class="title">{{ title }}</h3>
       <el-form-item prop="tenantName" v-if="tenantEnable">
         <el-input v-model="loginForm.tenantName" type="text" auto-complete="off" placeholder='租户'>
           <svg-icon slot="prefix" icon-class="tree" class="el-input__icon input-icon" />
@@ -68,6 +68,7 @@ export default {
   name: "Login",
   data() {
     return {
+      title: process.env.VUE_APP_TITLE,
       codeUrl: "",
       captchaEnable: true,
       tenantEnable: false,