add theme var @ve-table-body-row-expand-content-padding

Author: huangshuwei

packages/style/ve-table.less

@@ -9,8 +9,8 @@
 .ve-table *:before,
 .ve-table *:after {
     box-sizing: border-box;
-    margin: 0;
-    padding: 0;
+    // margin: 0;
+    // padding: 0;
 }
 
 .ve-table {
@@ -218,7 +218,7 @@
                         position: sticky;
                         z-index: @ve-fixed-body-cell-index;
                         left: 0px;
-                        padding: @ve-table-body-row-td-padding;
+                        padding: @ve-table-body-row-expand-content-padding;
                     }
                 }
             }

packages/theme-dark/var.less

@@ -9,6 +9,7 @@
 @ve-table-td-editing-line-height: 30px;
 @ve-table-head-row-td-padding: 10px;
 @ve-table-body-row-td-padding: 10px;
+@ve-table-body-row-expand-content-padding: 0 10px;
 @ve-table-foot-row-td-padding: 10px;
 @ve-table-border-color: #000;
 @ve-table-column-fixed-border-color: #434343;

packages/theme-default/var.less

@@ -9,6 +9,7 @@
 @ve-table-td-editing-line-height: 30px;
 @ve-table-head-row-td-padding: 10px;
 @ve-table-body-row-td-padding: 10px;
+@ve-table-body-row-expand-content-padding: 0 10px;
 @ve-table-foot-row-td-padding: 10px;
 @ve-table-border-color: #eee;
 @ve-table-column-fixed-border-color: #ddd;