feat：assetTable添加sn列

style：修改卡片样式

nezha-fronted/src/components/common/project/popData/expressionInfo.vue

@@ -0,0 +1,26 @@
+<template>
+  <div class="expressionInfo">
+  </div>
+</template>
+
+<script>
+	export default {
+		name:"expressionInfo",
+    props:{
+
+    },
+    data(){
+		  return{
+
+      }
+    }
+	}
+</script>
+
+<style scoped>
+.expressionInfo{
+  position: absolute;
+  top:50%;
+  left: 50%;
+}
+</style>