Stop ignoring event errors on WalletProvider

Even tho the try catch [here](https://github.com/decentraland/decentraland-dapps/blob/master/src/providers/WalletProvider/WalletProvider.ts#L21) or [here](https://github.com/decentraland/decentraland-dapps/blob/master/src/providers/WalletProvider/WalletProvider.ts#L55) is there to provide a way to safeguard against old providers, it was eating other errors like decentraland-connect's inability to handle .on() methods.

We maybe should remove the more generic `handle()` method and try to do it case-by-case