refactor: update to Svelte 5 preview

feat: add charrecorder
feat: dynamic os layouts for CC1

src/lib/charrecorder/TrackRollingWpm.svelte

@@ -0,0 +1,20 @@
+<script lang="ts">
+  import { getContext } from "svelte";
+  import { RollingWpmReplayPlugin } from "./core/plugins/rolling-wpm";
+  import type { ReplayPlayer } from "./core/player";
+
+  const player: ReplayPlayer | undefined = getContext("replay");
+
+  let { wpm = $bindable(0) } = $props();
+
+  $effect(() => {
+    if (!player) return;
+    const tracker = new RollingWpmReplayPlugin();
+    tracker.register(player);
+    const unsubscribe = tracker.subscribe((value) => {
+      wpm = value;
+    });
+
+    return unsubscribe;
+  });
+</script>