Merge pull request #5441 from dataease/pr@dev@fix_flow_map_multiplex

fix(视图-流向地图): 修复流向地图复用按钮被遮挡

frontend/src/components/canvas/components/editor/ComponentWrapper.vue

@@ -365,6 +365,7 @@ export default {
 .main_view {
   position: relative;
   background-size: 100% 100% !important;
+  z-index: 1;
 }
 
 .component {

frontend/src/views/chart/chart/map/map_antv.js

@@ -37,6 +37,7 @@ export function baseFlowMapOption(chartDom, chartId, chart, action) {
     }
   }
   if (xAxis?.length < 2 || xAxisExt?.length < 2) {
+    chartDom.removeAllLayer()
     return chartDom
   }
   chartDom.removeAllLayer()