style: 修改消息卡片样式

src/components/NotificationMessageCard/src/components/EventCard.vue

@@ -345,8 +345,8 @@ const jumpTracking = (data: EventCardPropsData) => {
     }
     .previous {
       margin-top: 8px;
-      padding-left: 8px;
-      line-height: 24px;
+      padding: 4px 8px;
+      line-height: 16px;
       background-color: var(--color-previous-bg);
       border-radius: 6px;
       span {