See details of my accounts

As a dapp user, I'd like to see the details of my accounts, so that I can make a good decision about which account(s) I'd like to connect.

**Description**

This story covers key identifying information of the account that is shown along side each of the specific accounts. This information includes things like:

Account balance
Account address

Designs available: https://www.figma.com/file/CvD7nhQVeSEB1QuSy3XhtY/oCap-%2F-Login-Per-Site?node-id=378%3A4527

**AC**

* show account's wallet address (last 4)
* show account balance
* show account nickname
* show last connected
* test coverage