feat: 在申请发行页面添加返回按钮，优化用户导航体验

src/views/issue/issuing-apply/index.vue

@@ -50,6 +50,7 @@ async function handleSubmit(editions: RwaIssuanceProductBody["editions"]) {
   <IonPage>
     <ion-header>
       <ion-toolbar class="ui-toolbar">
+        <ion-back-button slot="start" />
         <ion-title>{{ t('asset.issue.apply.title') }}</ion-title>
       </ion-toolbar>
     </ion-header>

src/views/user/components/issuing-asset.vue

@@ -5,7 +5,7 @@ const { t } = useI18n();
 </script>
 
 <template>
-  <div class="mt-10">
+  <div class="mt-5">
     <ion-label class="text-xs font-medium text-text-300">
       {{ t("asset.issue.issuingAsset") }}
     </ion-label>