feat(frontend): smoother event refresh, localized crumbs, template config deep-link

- Auto-refresh ticker is now silent: skips ``eventsLoading`` so the
  loading placeholder no longer flashes, uses ``(event.id)`` key on
  the events ``{#each}`` so unchanged rows reuse their DOM nodes, and
  short-circuits the array reassignment when the visible page is
  identical to what we already rendered. No-op refreshes leave the
  list completely untouched.
- ``PageHeader`` crumbs (Routing · Notification, Operators · Bots, …)
  were hard-coded literals. Moved to a new ``crumbs`` i18n namespace
  with 9 keys; updated all 15 call sites to ``t('crumbs.*')`` so they
  switch with the language.
- Tracker form's Immich feature-discovery banner now exposes both
  ``Open Tracking Config`` and ``Open Template Config``. Added the
  ``?edit=<id>`` auto-open hook to ``/template-configs`` (mirrors the
  existing one on ``/tracking-configs``) so the new link lands users
  directly on the editor.

frontend/src/routes/notification-trackers/TrackerForm.svelte

@@ -227,13 +227,22 @@
 			<span style="color: var(--color-primary);"><MdiIcon name="mdiInformationOutline" size={16} /></span>
 			<div class="flex-1 text-xs">
 				<p style="color: var(--color-muted-foreground);">{t('notificationTracker.featureDiscovery')}</p>
-				<a href={form.default_tracking_config_id
-					? `/tracking-configs?edit=${form.default_tracking_config_id}`
-					: '/tracking-configs'}
-					class="inline-flex items-center gap-1 text-[var(--color-primary)] hover:underline mt-1">
-					<MdiIcon name="mdiArrowRight" size={12} />
-					{t('notificationTracker.openTrackingConfig')}
-				</a>
+				<div class="flex flex-wrap gap-x-4 gap-y-1 mt-1">
+					<a href={form.default_tracking_config_id
+						? `/tracking-configs?edit=${form.default_tracking_config_id}`
+						: '/tracking-configs'}
+						class="inline-flex items-center gap-1 text-[var(--color-primary)] hover:underline">
+						<MdiIcon name="mdiArrowRight" size={12} />
+						{t('notificationTracker.openTrackingConfig')}
+					</a>
+					<a href={form.default_template_config_id
+						? `/template-configs?edit=${form.default_template_config_id}`
+						: '/template-configs'}
+						class="inline-flex items-center gap-1 text-[var(--color-primary)] hover:underline">
+						<MdiIcon name="mdiArrowRight" size={12} />
+						{t('notificationTracker.openTemplateConfig')}
+					</a>
+				</div>
 			</div>
 		</div>
 		{/if}