[IDEA] Message to be signed should be cleartext

[bluesign]

Currently it is showing something like:

4:4163636570743a204170706c792061646a7573746d656e747320746f207472616e73616374696f6e2066656520706172616d65746572732074686572656279206368616e67696e67206665652063616c63756c6174696f6e73:1649521564405

it should be more like:

Voting on Cast Proposal Number 4: Selected Option: Accept: Apply adjustments to transaction fee parameters thereby changing fee calculations

Making user sign machine readable stuff is very bad practice.

Accept: Apply adjustments to transaction fee parameters thereby changing fee calculations