I want a clean, reliable Flutter wrapper for my existing website that runs smoothly on both Android and iOS. Using the latest stable Flutter and webview_flutter (or any equivalent package you trust), the app should launch the supplied URL, show a small loading indicator, respect platform back navigation, open external links in the browser, and fall back to the default offline/error pages when connectivity drops. Design requirements are simple: a single dark theme throughout the app. I don’t yet have visual assets, so you’ll also create an app icon and a matching splash screen that complement the site’s style. Once the work is finished I expect builds ready for the stores along with everything needed to maintain them: • Full Flutter source code • Android APK/AAB ready for Play Store upload • iOS IPA or complete Xcode project ready for App Store submission • Custom icon and splash screen files • Clear, step-by-step build and publishing instructions When you respond, please outline your Flutter experience, link to similar WebView-based apps you’ve produced, and let me know whether you prefer to quote an hourly rate or a fixed price for the whole job.