I need a quick, tidy refresh applied to my existing Flutter app. I already have the new app icon asset, as well as the replacement copy for the two or three labels that appear on the login screen in every language we currently support. Your job is to: • swap in the new icon across all platforms • update those multilingual strings in the login view • rebuild the project for both Android (AAB) and iOS (IPA/TestFlight) • prepare and upload the releases to Google Play and the Apple App Store, including the required store-listing screenshots. I’ll supply the icon, the translated texts, and existing store credentials. You handle the Flutter tweaks, store-ready builds, and successful submissions.