fix(approve): update icon in approval card to enhance visual clarity

- Replace info icon with clock icon in approval card to better represent creation time
- Adjust icon color for improved visibility and consistency with design standards

pages/approve/index.vue

@@ -26,7 +26,7 @@
                     </view>
                     <view class="card-row row verCenter bothSide">
                         <view class="row verCenter">
-                            <u-icon name="info-circle-fill" color="#3b82f6"></u-icon>
+                            <u-icon name="clock-fill" color="#c0c4cc"></u-icon>
                             <text class="card-time">{{ item.create_time_cn }}</text>
                         </view>
                         <text class="card-tag">{{ item.relief_detail }}</text>