feat(hunt): track walking distance via GPS, show live locations on map

Add foreground-only GPS distance tracking for hunts

app/components/showcase/NumberCard.vue

@@ -1,6 +1,7 @@
 <script setup lang="ts">
 defineProps<{
-  count: number | string;
+  value?: string;
+  count?: number | string;
   title: string;
   icon: string;
 }>();
@@ -8,7 +9,7 @@ defineProps<{
 
 <template>
   <div class="card">
-    <h3>{{ Number(count).toLocaleString('de') }}</h3>
+    <h3>{{ value ? value : Number(count).toLocaleString('de') }}</h3>
     <VaIcon :name="icon" size="10rem" />
     <p>{{ title }}</p>
   </div>