Add timezone preference across time displays

src/routes/+layout.svelte

@@ -1,5 +1,6 @@
 <script lang="ts">
     import { onMount } from 'svelte';
+    import { startTimeZonePreference } from '$ui/stores/time-zone.js';
     import { afterNavigate, onNavigate, goto } from '$app/navigation';
     import { startPipelineStream } from '$ui/stores/pipeline.js';
     import { startServerStream } from '$ui/stores/servers.js';
@@ -42,6 +43,7 @@
     }
 
     onMount(() => {
+        const stopTimeZone = startTimeZonePreference();
         const stopNotifications = startNotificationHistory();
         const stopPipeline = startPipelineStream();
         const stopServers = startServerStream();
@@ -80,6 +82,7 @@
         };
         window.addEventListener('keydown', onKey);
         return () => {
+            stopTimeZone();
             stopNotifications();
             stopFleetMonitor();
             stopPipeline?.();
@@ -107,7 +110,7 @@
         ? [{ href: '/scripts', label: 'Scripts' }, { href: '/configs', label: 'Configs' }, { href: '/plugins', label: 'Plugins' }]
         : tabs[2].match($page.url.pathname)
         ? [{ href: '/deployments', label: 'Server deployments' }, { href: '/campaigns', label: 'Campaigns' }]
-        : tabs[4].match($page.url.pathname) ? [{ href: '/settings', label: 'System status' }, { href: '/server-keys', label: 'Server keys' }] : []);
+        : tabs[4].match($page.url.pathname) ? [{ href: '/settings', label: 'Preferences & status' }, { href: '/server-keys', label: 'Server keys' }] : []);
 </script>
 
 <svelte:window onkeydown={closeMenu} />