fix(login): 修复登录页文字

pages/login.vue

@@ -11,7 +11,7 @@
         >
           <v-text-field
             v-model="form.phone"
-            label="手机号码"
+            label="请输入"
             name="phone"
             required
             :error-messages="errors"
@@ -28,7 +28,7 @@
         >
           <v-text-field
             v-model="form.password"
-            label="手机号码"
+            label="请输入"
             name="phone"
             required
             :error-messages="errors"