feat: usdt payment and earn screens match the final designs #943

Problem or use case

The USDT payment, deposit and Earn screens shipped in #884 differ from the final designs in a few places: Earn setup copy, bridge amount details, deposit-history access from Receive, support actions, and per-method selection for requests and subscriptions.

Proposed solution

Match the approved designs (follow-up agreed in the 3.0.0 USDT review, to keep #884 reviewable).