Upgraded Chart.js to v4. Updated charts.

lib/date.js

@@ -181,18 +181,18 @@ export function getDateArray(data, startDate, endDate, unit) {
   const n = diff(endDate, startDate) + 1;
 
   function findData(t) {
-    const x = data.find(e => {
-      return normalize(getDateFromString(e.t)).getTime() === t.getTime();
+    const d = data.find(({ x }) => {
+      return normalize(getDateFromString(x)).getTime() === t.getTime();
     });
 
-    return x?.y || 0;
+    return d?.y || 0;
   }
 
   for (let i = 0; i < n; i++) {
     const t = normalize(add(startDate, i));
     const y = findData(t);
 
-    arr.push({ ...data[i], t, y });
+    arr.push({ x: t, y });
   }
 
   return arr;