Lindsay Lohan received a present she won’t forget – she was paid a staggering 000 (?46000) to host her own birthday bash. The Mean Girls star turns 23 on Thursday and she made sure the day would be a profitable one by agreeing to be paid to party at the MGM Grand in Las Vegas. The venue handed over 000 (?46000) just for the actress to enjoy herself at the pool-side event last Saturday, according to New York gossip column PageSix. As part of the deal, Lohan was expected to pose for …