fixed compare display

src/utils/dashboardLoader.ts

@@ -2,6 +2,7 @@ import { api } from "../../react-openapi";
 import { LatestItem } from "../components/LatestItemsList";
 import { ChartDataPoint } from "../components/HistoryChart";
 import * as React from "react";
+import { format } from "./dateUtils";
 import MonetizationOnIcon from "@mui/icons-material/MonetizationOn";
 
 import {
@@ -129,7 +130,10 @@ export async function fetchAggregatedData(
     arr.map((x) => ({
       id: x.label,
       amount: x.amount,
-      compareAmount: x.compare
+      compareAmount: x.compare,
+      compareLabel: x.prevStart && x.prevEnd
+        ? `${format(x.prevStart)} - ${format(x.prevEnd)}`
+        : undefined
     }));
 
   const chartData = {