Harden gameplay timing and map loading

components/CatalogBrowser.tsx

@@ -8,9 +8,9 @@ export function CatalogBrowser({ maps }: { maps: CardMap[] }) {
   const shown = maps.filter(
     (m) =>
       (source === "all" || m.source === source) &&
-      (m.name + " " + m.description + " " + m.server?.name)
+      (m.name + " " + m.description + " " + (m.server?.name ?? ""))
         .toLowerCase()
-        .includes(query.toLowerCase()),
+        .includes(query.trim().toLowerCase()),
   );
   return (
     <>
@@ -33,6 +33,7 @@ export function CatalogBrowser({ maps }: { maps: CardMap[] }) {
             <button
               key={id}
               className={source === id ? "active" : ""}
+              aria-pressed={source === id}
               onClick={() => setSource(id)}
             >
               {label}