add table tool style

src/editor/assets/css/table/table.css

@@ -82,4 +82,23 @@
   z-index: 9;
   position: absolute;
   border: 1px dotted #000000;
-}
+}
+
+.ce-table-tool__line {
+  position: absolute;
+  z-index: 1;
+  background: transparent;
+  pointer-events: none;
+}
+
+.ce-table-tool__rline__resize {
+  position: absolute;
+  cursor: row-resize;
+  pointer-events: auto;
+}
+
+.ce-table-tool__cline__resize {
+  position: absolute;
+  cursor: col-resize;
+  pointer-events: auto;
+}