React dev errors

also store transaction history to review. Next step - listing
transaction status.

Connection helped included add token prompt and link
Font now included in CSS (needs testing)

Detect all metamask states
UX for approve transactions
UX for getting more ETH from faucet
UX for submitted transactions
Toggle about

Began porting some function and state names to more generic descriptors
like inputToken & outputToken thats align more closely with the
proposed UX model in this design. Needs discussion.