A succeed purchase is complete, but when I re-launch the app again, the paywall page is displayed again. How to avoid it, meaning to check if a user already purchased before then if yes not pop up the paywall.
```
.sheet(isPresented: $showPaywall) {
MyPaywallView()
}
```
```
import SwiftUI
import RevenueCat
import RevenueCatUI
struct MyPaywallView: View {
var body: some View {
PaywallView()
}
}
#Preview {
MyPaywallView()
}
```