fix：修改timeserise鼠标划过样式

nezha-fronted/src/components/chart/chart/chartTimeSeries.vue

@@ -7,7 +7,7 @@
     v-my-loading="chartLoading"
   >
     <div class="chart__canvas" style="position:relative">
-      <div :id="`chart-canvas-${chartId}`" :class="{'chart-cursor-default':!dataLink.length}"></div>
+      <div :id="`chart-canvas-${chartId}`"></div>
       <!-- 右y轴name -->
       <p class="rightYAxis-name" v-if="hasRightYAxis">
         <span>{{chartInfo.param.rightYAxis.label}}</span>

nezha-fronted/src/components/chart/chartMixin.js

@@ -78,7 +78,11 @@ export default {
             return
           }
           this.isNoData = false
+
           let s = lodash.cloneDeep(seriesTemplate)
+          if (!this.dataLink.length) {
+            s.cursor = 'default'
+          }
 
           // 设置右y轴
           if (chartInfo.param.enable.rightYAxis) {