Show contract address & recipient address in transaction detail view

For token transfers or approve calls, the transaction technically goes to a contract, but there's an additional "recipient" address that's useful for people to know.

We should show all three addresses somehow. Couple ideas
* add recipient next to contract address, showing three addresses across
* add to "Transaction" list on the left
* tuck away in another expandable option

The issue does not name files or tests; start by locating the transaction detail view and checking how token transfers and approve calls expose contract and recipient addresses. Decide how the three addresses should be presented, then verify that the detail view shows the contract, sender, and recipient for both transaction types.

Written by the indexing model from the issue text.