Bump version to 0.2.0

Add '#' on all <a>

"Transaction Details" viewable any time

Switch order from "to" and "amount" fields on Signer screen

fix: Relates to #138. Prevents user from importing account that is already in account list

feat: Fixes #308. Change amount font size on Send page to fit in input field

feat - Fixes #293. Shows tx fee estimate and total tx amount. See issues in commit details

* Move toggle details buttons and associated methods and showDetails state into nav of TxForm component

* Pass showDetails down as props to TxDetails

* Remove previous attempt to display TxDetails like a popup above other fields
(i.e. remove form-details-wrapper and -details-value styles)