Improve transaction detail amounts

[hynek-jina]

Changes applies generally to all kind of transactions (Not only CoinJoin)

Display: Total, Amount, Fee, and in CoinJoin transaction Service too.

• Rename Amount tab to Amounts
• Remove Total inputs and Total outputs from Amount tab of transaction detail
  this metric is quite confusing for users and doesn't bring much value. Numbers are still accessible in mempool.
• Add Total with higher visibility then other metrics (my inputs - my outputs) → total balance change The same number is visible in transaction history.
• Change Amount meaning:
  • Send transaction → Receivers outputs (displayed witch negative sign)
  • Receive transaction = Received amount (no change)
  • Send to myself transaction = 0
  • CoinJoin transaction = 0
• Change meaning of Fee from fee of whole transaction to part of fee paid by user
  • It results in negative sign in send transaction. 0 in receive transaction. Users part of fee in CoinJoin transaction.

CoinJoin specific part

• Add Service fee for CoinJoin transactions displaying part of fee paid to coordinator
• Consider distinguishing Dust fee - too small funds dropped in the transaction

Related issue: #6973