message: fix: use BigNumber in MAX_ENERGY_PER_CERTIFICATE
diff: -import { BigNumber } from 'ethers/utils';
  +import { BigNumber, bigNumberify } from 'ethers/utils';
  -export const MAX_ENERGY_PER_CERTIFICATE = 1e16;
  +export const MAX_ENERGY_PER_CERTIFICATE = bigNumberify('10000000000000000');
  export interface ICertificationRequest {
  id: number;
  