style(styles): 为el-table添加自定义滚动条样式

klp-ui/src/assets/styles/element-ui.scss

@@ -302,6 +302,7 @@ body {
   padding: 4px 8px !important;
   font-size: 12px;
   height: $--btn-height;
+
   &.is-circle {
     padding: 4px !important;
   }
@@ -343,9 +344,28 @@ body {
   }
 }
 
+.el-table ::-webkit-scrollbar {
+  width: 8px !important;
+  height: 12px !important;
+}
+
+.el-table ::-webkit-scrollbar-track {
+  background-color: transparent !important;
+}
+
+.el-table ::-webkit-scrollbar-thumb {
+  background-color: #c0c4cc !important;
+  border-radius: 0 !important;
+}
+
+.el-table ::-webkit-scrollbar-thumb:hover {
+  background-color: #909399 !important;
+}
+
 .el-table__fixed,
 .el-table__fixed-right,
 .el-table__fixed-left {
+
   // 表头（深灰黑 + 纯白文字）
   .el-table__fixed-header-wrapper {
     th.el-table__cell {
@@ -1639,4 +1659,4 @@ div.pagination-container {
       color: $--color-primary;
     }
   }
-}
+}