Make UI language, timestamps and live feedback consistent

src/routes/leaderboard/+page.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
+    import RelativeTime from '$ui/components/RelativeTime.svelte';
     let { data: initial }: { data: import('./$types').PageData } = $props();
-    import { timeFormat } from '$ui/stores/time-zone.js';
     import { onMount, untrack } from 'svelte';
     import { goto } from '$app/navigation';
     import { page, navigating } from '$app/stores';
@@ -298,7 +298,7 @@
             <p>Only completed games contribute to records. Games in progress and interrupted games stay out of totals and rankings. Players who left a completed game keep their recorded stats. Game, map, and starting squad-size filters choose which matches contribute; player search preserves ranks. Player totals count each GUID once. The top stats cover all recorded players in the selected game and map; player search and ranking qualification do not change those totals.</p>
             <p>Highest round includes mid-game joins. Total rounds counts round progression during observed participation, excluding earlier rounds. Joining at round 8 records a highest round of 8; reaching round 9 adds one to total rounds. The fleet total adds all players’ rounds.</p>
             <p>Kills, headshots, revives, and downs accumulate across recorded games. Highest reported score is the largest observed points balance, not the total points a player has earned. Equal values share a rank.</p>
-            <p>Records cover telemetry saved since tracking began; older unrecorded games cannot be included.{#if data?.summary.firstTrackedAt}{' '}Tracking began <time datetime={data.summary.firstTrackedAt}>{$timeFormat.dateTime(data.summary.firstTrackedAt)}</time> for this selection.{/if}{#if data?.summary.updatedAt}{' '}Latest report: <time datetime={data.summary.updatedAt}>{$timeFormat.dateTime(data.summary.updatedAt)}</time>.{/if}</p>
+            <p>Records cover telemetry saved since tracking began; older unrecorded games cannot be included.{#if data?.summary.firstTrackedAt}{' '}Tracking began <RelativeTime value={data.summary.firstTrackedAt} /> for this selection.{/if}{#if data?.summary.updatedAt}{' '}Latest report: <RelativeTime value={data.summary.updatedAt} />.{/if}</p>
         </div>
     </details>
 </section>