Part of #998.
Related (iOS): synonymdev/bitkit-ios#696
Scope
Send UI polish after hardware send:
- Switching the funding source to Trezor keeps the source chip filled and shows a small spinner until the hardware fee is ready.
- Confirm keeps the previous fee with a spinner while the estimate refreshes.
- Swipe-to-confirm stays visible and stays blocked until the hardware fee is present.
Part of #998.
Related (iOS): synonymdev/bitkit-ios#696
Scope
Send UI polish after hardware send: