Switch back to dapp

[chadyj]

Is your feature request related to a problem? Please describe.

Support a way for wallet apps to switch back to the client dapp running the browser when both the wallet and browser are on the same mobile device

Describe the solution you'd like

1. Visit dapp in iOS Safari
2. Choose WC
3. Choose Wallet
4. Auto switched to Wallet
5. Accept connection in Wallet.

Additional context

Feature request from AlphaWallet.

Metamask and Rainbow have done something like this.

They trigger a native API to switch back to previous app in foreground It seems to be a routing API that you can go back in history once.

Here is the source code that shows how Rainbow use “goBack” in their package
https://github.com/brunobar79/react-native-minimizer/blob/master/ios/Minimizer.m