Fix: Last update date

Author: kayjan

docs/dev/bench/index.html

@@ -130,8 +130,9 @@
           const data = window.BENCHMARK_DATA;
 
           // Render footer (repository)
-          const date = Date(data.lastUpdate).split(" ").slice(0, 4).join(" ");
-          document.getElementById('last-update').textContent = date;
+          const date = new Date(data.lastUpdate);
+          const date_str = date.toLocaleDateString("en-sg", {weekday:"short", day:"numeric", month:"short", year:"numeric"});
+          document.getElementById('last-update').textContent = date_str;
 
           const repoResultURL = 'https://kayjan.github.io/bigtree-benchmark/dev/bench/';
           const repoResult = document.getElementById('repository-result');