LOS ANGELES -- Initial signs suggest a smooth and amicable split between Kim Kardashian West and Kanye West.As “Kimye” becomes just Kim and Kanye with Kardashian filing for divorce Friday in Los Angeles Superior Court, they do so with a prenuptial agreement in place, independent fortunes and a desire to share time with their four young children.The presence of the prenup means the couple likely kept much of their property — hers earned through reality TV and channeling her celebrity into several