ETH Testnet Dispute Button Showing When it Shouldn't

[jjeffryes]

When using the experimental ETH support branch of the server in testnet mode, the dispute button is shown in the UI when it appears the server thinks the order has timed out (which happens after just a few minutes).

We should investigate why the server and UI aren't in sync. There were other issues with missing socket messages, so it may be the case the UI isn't receiving a message to update the state of the order, or the block time in the server and client don't match.

See server issue for reference: https://github.com/OpenBazaar/openbazaar-go/issues/1422#issuecomment-458569029