feat: 更新按钮样式，优化用户界面交互体验

src/views/deposit/fiat.vue

@@ -95,7 +95,7 @@ async function onSubmit() {
 
         <ion-note>{{ t("recharge.fiat.note") }}</ion-note>
 
-        <ion-button expand="block" @click="onSubmit">
+        <ion-button expand="block" shape="round" color="success" @click="onSubmit">
           {{ t("recharge.fiat.submit") }}
         </ion-button>
       </div>

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

src/views/withdraw/index.vue

@@ -169,7 +169,7 @@ async function onSubmit(values: GenericObject) {
             <ErrorMessage name="amount" class="text-red-500 text-xs mt-1" />
           </div>
 
-          <ion-button expand="block" type="submit">
+          <ion-button expand="block" type="submit" shape="round" color="success">
             {{ t("withdraw.submit") }}
           </ion-button>
         </div>