refactor: 迁移到 @nuxt/ui@4

- https://ui.nuxt.com/docs/getting-started/migration/v4#changes-from-v3

app/components/ModalAuthentication.vue

@@ -411,7 +411,7 @@ const onForgetPasswordSubmit = (
                   name="mobile"
                   required
                 >
-                  <UButtonGroup class="w-full">
+                  <UFieldGroup class="w-full">
                     <UInput
                       v-model="smsForm.mobile"
                       :disabled="final_loading"
@@ -437,7 +437,7 @@ const onForgetPasswordSubmit = (
                       class="text-xs font-bold"
                       color="neutral"
                     />
-                  </UButtonGroup>
+                  </UFieldGroup>
                 </UFormField>
                 <Transition name="pin-root">
                   <div v-if="sms_triggered">
@@ -485,7 +485,7 @@ const onForgetPasswordSubmit = (
                     name="mobile"
                     required
                   >
-                    <UButtonGroup class="w-full">
+                    <UFieldGroup class="w-full">
                       <UInput
                         v-model="forgetPasswordState.mobile"
                         :disabled="final_loading"
@@ -512,7 +512,7 @@ const onForgetPasswordSubmit = (
                         class="text-xs font-bold"
                         color="neutral"
                       />
-                    </UButtonGroup>
+                    </UFieldGroup>
                   </UFormField>
                   <UFormField
                     label="验证码"