change(ems): 修改瞬时流量图表标题

- 在瞬时流量图表标题中增加"曲线"二字，标题显示平均值

src/views/ems/report/currentSteamCurve/index.vue

@@ -265,7 +265,7 @@ export default {
 
       let option1 = {
         title: {
-          text: this.selectMonitorName + ' 瞬时流量' + ' (平均值:'+
+          text: this.selectMonitorName + ' 瞬时流量曲线' + ' (平均值:'+
             ((data.map(e=>parseFloat(e.fluxFlow)).reduce((a,b)=>a+b,0))/data.length).toFixed(2)+")",
           x: 'center'
         },