pass all graph queries into createTimeSeries

app/assets/javascripts/monitoring/components/graph.vue

@@ -138,7 +138,7 @@
 
       renderAxesPaths() {
         this.timeSeries = createTimeSeries(
-          this.graphData.queries[0],
+          this.graphData.queries,
           this.graphWidth,
           this.graphHeight,
           this.graphHeightOffset,

app/assets/javascripts/monitoring/utils/multiple_time_series.js

@@ -11,7 +11,8 @@ const defaultColorPalette = {
 
 const defaultColorOrder = ['blue', 'orange', 'red', 'green', 'purple'];
 
-export default function createTimeSeries(queryData, graphWidth, graphHeight, graphHeightOffset) {
+export default function createTimeSeries(queries, graphWidth, graphHeight, graphHeightOffset) {
+  const queryData = queries[0];
   let usedColors = [];
 
   function pickColor(name) {