Add streaks, scheduled releases, and notification settings

- Couple streaks with milestone notifications
- Scheduled pack releases with admin UI
- Notification preferences screen
- Refactored profile settings screens
- Partner activity notifications

apps/mobile/app/(app)/settings/_layout.tsx

@@ -0,0 +1,12 @@
+import { Stack } from 'expo-router';
+
+export default function SettingsLayout() {
+    return (
+        <Stack
+            screenOptions={{
+                headerShown: false,
+                animation: 'slide_from_right',
+            }}
+        />
+    );
+}