Scotland striker’s move to Ibrox is offically confirmed ahead of World CupRangers have announced the signing of Hearts captain Lawrence Shankland, with the Scotland striker agreeing a two-year contract with an option of a further 12 months.The Ibrox club invoked a clause in Shankland’s Hearts contract that allowed him to depart Tynecastle. Both clubs say that the terms of the transfer remain undisclosed.Rangers passed up the opportunity to sign Shankland last summer and he netted 20 goals in 34 appearances as Hearts came so close to landing the Premiership title. However, with the Ibrox hierarchy keen to bring in more domestic players during the upcoming transfer window, they have moved swiftly to land Shankland ahead of this summer’s World Cup.Lawrence Shankland has left Hearts for Rangers…