QGB posting confirms to a reserved namespace ADR

[rach-id]

Currently, we're posting Valset Confirms and DataCommitment Confirms directly in state. This is posing us with limitations such as: state grows and increasingly high gas fees. Thus, we can think of posting the confirms to a reserved namespace to solve the above issues. So, we will need to formalize the decision in an ADR.

[rach-id]

Update, we decided to update the ADR to reducing the QGB module state.