rewarded_address in StateTransition is hard coded

[citizen-stig]

As for today, reward address is hard coded to be address of sequencer.

There are couple problems with it:

• Impossibility to have rewards to be sent to different address rather than sequencer.
• It is unclear if rewards are DA layer currency or Rollup currency. If it is rollup currency, then it should be rollup address.

Original PR: #598

[theochap]

I don't have strong opinions about what the reward address should be. I think it should indeed be dynamic instead of hardcoded (specially for the based sequencing feature), and when it comes to the currency I think it doesn't really matter (but need to double check with @preston-evans98 )

[preston-evans98]

Yep, the rewarded address should definitely be dynamic. And it doesn't matter to me which format it is in - either a DA address or the corresponding rollup address is fine. Whichever is most natural for the module that needs to consume it.