harmony

@darrlau designed a next generation UI for 1wallet, which looks awesome and organizes the features in a much more sensible way. The design may be made available in the repository later, after another iteration of improvement.

Since our current frontend implementation rely on antd (albeit with substantial customizations), implementing the UI would require overriding a considerable amount of antd

we need to start a new stable testnet for dApp developers, One shard is good enough.