fix: "view all" link pointed at /history path (404); use ?history query

static/app.js

@@ -111,7 +111,7 @@ function showHome() {
     head.append(el("h2", null, "Recently played"));
     if (history.length >= 5) {
       const va = el("a", null, "view all \u2192");
-      va.href = BASE + "history";
+      va.href = BASE + "?history";
       head.append(va);
     }
     main.append(head);