Double success panel when using Frame

[luisivan]

Describe the bug
Frame creates a success transition when a transaction is broadcast, and it is extremely similar to the one on the Aragon client, resulting in a pretty awkward moment when using the product.

To Reproduce
Steps to reproduce the behavior:

1. Install Frame
2. Sign a transaction

Expected behavior
Detect if the client is not using MetaMask or is using Frame, and don't show the success panel.

[jounih]

@bpierre can we detect when Frame is used instead of MetaMask?

[sohkai]

@jounih This is somewhat difficult to do right now (see #621), but once we figure out how to do this we can disable this panel for frame.

Alternatively we could whitelist providers, like Metamask, and only the panel if they're connected.

[sohkai]

This and #621 are now possible with web3.eth.getNodeInfo() in newer versions of web3.js (still undocumented).

[sohkai]

I believe this should be detectable now, if the user uses frame without its extension.