Ability to view transaction history

[nghiacc]

A transaction history would be handy for the user to see the sending and receiving transactions.

Proposed solution:

• If the user taps/touches on the balance, the history screen will be shown
• The user will see recent transactions, scrolling down will reveal more as needed
• There is a back button to go back to the previous screen Additional features can be considered:
• The user can click on a transaction to go to the explorer (explorer.givelotus.org/tx/[transaction id]
• The user can expand the transaction to see additional details
• The user can choose to send to the sender/receiver again
• There can be a filter to filter between outgoing transactions vs incoming transactions.

Edit: The history could be shown on the Settings page instead.