feat: 更新按钮样式，优化用户界面交互体验

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

@@ -122,7 +122,7 @@ function handleSubmit(values: GenericObject) {
         <ErrorMessage name="totalSupplyLimit" />
       </div>
 
-      <ion-button type="submit" expand="block">
+      <ion-button type="submit" expand="block" shape="round" color="success">
         {{ t('asset.issue.apply.next') }}
       </ion-button>
     </div>

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

@@ -190,12 +190,14 @@ function handleSubmit(values: GenericObject) {
       </ion-button>
     </FieldArray>
 
-    <ion-button expand="block" @click="$router.back()">
-      {{ t('asset.issue.apply.back') }}
-    </ion-button>
-    <ion-button expand="block" type="submit">
-      {{ t('asset.issue.apply.submit') }}
-    </ion-button>
+    <div class="flex justify-center space-x-4">
+      <ion-button expand="block" shape="round" @click="$router.back()">
+        {{ t('asset.issue.apply.back') }}
+      </ion-button>
+      <ion-button expand="block" type="submit" class="w-full" shape="round" color="success">
+        {{ t('asset.issue.apply.submit') }}
+      </ion-button>
+    </div>
   </Form>
 </template>