Calls to `personal_sign` are now:
- When hex encoded, preserved as hex encoded, but displayed as utf-8 text.
- When not hex encoded, decoded as utf-8 text as hex for signing.
- The messages proposed for signing are displayed as UTF-8 text.
- When the message cannot be rendered as UTF-8 text, it is displayed as hexadecimal.
Fixes#1173
This was used by the custom gas slider on the `send` screen, and it was used to modify the gas value before sending it out, breaking our new custom gas field logic.
Removed it and the logic that referred to this now-outdated parameter.
The state object had been changed, but our mock states for tx approval were using the old keys.
Rather than try to muck about and figure out each and every change, I've re-generated a UI dev state for tx approval, which should help @zanibas on his current project.
We can continue adding new dev states as needed from here. If anyone catches a state that doesn't render correctly, it's worth checking if a new snapshot doesn't solve things.
Debugged by adding new debugging loggers, and I've left them in place for easier future debugging.
Also added a new state to try to make UI dev mode work again, but it has other issues, like #1128, that need to be addressed before UI dev mode can be used again.