Migrate to dayjs and Astro 4.0

src/components/FightStatsChart.svelte

@@ -12,10 +12,10 @@
         Title
     } from "chart.js"
     import type {FightStats} from "./types/stats.ts"
-    import 'chartjs-adapter-moment'
+    import 'chartjs-adapter-dayjs-4'
 
     export let data: FightStats;
-    let chart;
+    let chart: Chart;
     let canvas: HTMLCanvasElement;
 
     onMount(async () => {
@@ -25,13 +25,7 @@
         }
 
         const colors = ["#abfa91", "#279900", "#00ffbe", "#9297fb", "#050b9d", "#b60fff", "#8dddfc", "#0880ad", "#41ff00", "#039973", "#96fce2", "#0009ff", "#7501a4", "#e2a2fb", "#00b9ff"];
-        const map = new Map<string, {x: Date, y: number}[]>()
-        for (const {date, count, gamemode} of data) {
-            if (!map.has(gamemode)) {
-                map.set(gamemode, [])
-            }
-            map.get(gamemode)!!.push({x: new Date(date), y: count})
-        }
+        const map = Map.groupBy(data, entry => entry.gamemode);
 
         chart = new Chart(
             canvas,