fix(mobile): update privacy policy URL to app subdomain

Author: batalabs

apps/mobile/v1/app.json

@@ -21,7 +21,7 @@
       "typelets"
     ],
     "privacy": "public",
-    "privacyPolicyUrl": "https://typelets.com/privacy",
+    "privacyPolicyUrl": "https://app.typelets.com/privacy",
     "platforms": [
       "ios",
       "android"