Add timezone preference across time displays

src/routes/server-keys/+page.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+    import { timeFormat } from '$ui/stores/time-zone.js';
     import { onMount } from 'svelte';
     import { page } from '$app/stores';
     import { goto } from '$app/navigation';
@@ -53,7 +54,7 @@
         if (match && zombieMapBySlug(match[1], match[2])) { game = match[1] as ZombieGame; mapSlug = match[2]; lobby = Number(match[3]); }
         open = true;
     }
-    function savedAt(value: string) { return new Date(value.includes('T') ? value : value.replace(' ', 'T') + 'Z').toLocaleString(); }
+    function savedAt(value: string) { return $timeFormat.dateTime(value); }
     async function save(e: SubmitEvent) {
         e.preventDefault();
         if (!validId || !plutoKey.trim() || busy) return;