[P1] Transaction note not shown in transaction detail view

[islandbitcoin]

Filed by Lori (app audit). Bug.

File: app/screens/transaction/transaction-detail.tsx (approx — Nick to confirm)

Problem: User adds a note during send flow but Description field defaults to Sent in detail view. Note feature is pointless if it doesnt surface.

Fix:

• Description field renders user-entered note when one exists
• Falls back to Sent/Received only when no note was entered
• Bonus: hide Type: Lightning row from users not in Advanced Mode

AC:

• User note appears as Description when note was entered at send time

[linear]

ENG-152