feat(activities): seat Map right after Home in the bottom nav

Map is a primary discovery surface for events, so it earns the second
slot next to Home instead of sitting at the tail of the auth-gated
tabs (My tickets, Hosting). Unchanged auth gating on the other tabs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/events-app/App.vue

@@ -51,6 +51,7 @@ const tabs = computed<BottomTab[]>(() => [
     },
     isActive: () => inFeedRoute() && !onlyHosting.value,
   },
+  { name: t('events.nav.map'), icon: Map, path: '/events/map' },
   {
     name: t('events.filters.myTickets'),
     icon: Ticket,
@@ -88,7 +89,6 @@ const tabs = computed<BottomTab[]>(() => [
     isActive: () => inFeedRoute() && onlyHosting.value,
     disabled: !isAuthenticated.value,
   },
-  { name: t('events.nav.map'), icon: Map, path: '/events/map' },
   {
     name: t('events.nav.favorites'),
     icon: Heart,