chore: vendor client into main repo

client/app/(app)/_layout.tsx

@@ -0,0 +1,50 @@
+import { Stack } from 'expo-router';
+import { Pressable, Text } from 'react-native';
+import { useTranslation } from 'react-i18next';
+import { useRouter } from 'expo-router';
+
+export default function AppLayout() {
+  const router = useRouter();
+  const { t } = useTranslation();
+
+  return (
+    <Stack
+      screenOptions={{
+        headerTitleAlign: 'center',
+      }}
+    >
+      <Stack.Screen
+        name="home"
+        options={{
+          title: t('home.title'),
+          headerRight: () => (
+            <Pressable
+              onPress={() => router.push('/(app)/settings')}
+              hitSlop={10}
+            >
+              <Text>{t('home.settings')}</Text>
+            </Pressable>
+          ),
+          headerLeft: () => (
+            <Pressable onPress={() => router.push('/(app)/favorites')} hitSlop={10}>
+              <Text>{t('home.favorites')}</Text>
+            </Pressable>
+          ),
+        }}
+      />
+      <Stack.Screen
+        name="favorites"
+        options={{
+          title: t('favorites.title'),
+        }}
+      />
+      <Stack.Screen
+        name="settings"
+        options={{
+          title: t('settings.title'),
+        }}
+      />
+    </Stack>
+  );
+}
+