The reward percentage for fraud detectors is hardcoded

[omritoptix]

In x/sequencer/keeper/fraud.go:90, the rewardMul value, representing the reward assigned to the fraud detector, is hardcoded at 50% during the execution of the PunishSequencer function. This value cannot be modified through any existing handler, limiting flexibility and adaptability.
Given the comment on line 90 and to ensure future maintainability and serviceability, this parameter should be configurable and subject to governance control.