By Kelly-Ann Mills ISIS poster girl Shamima Begum has been banned from the UK forever after losing herCourt of Appeal challenge over the removal of her British citizenship. Dubbed the ‘ISIS Bride’, she ran off to Syria to join terror group with two schoolfriends in 2015 during the February half term holidays to marry a notoriously hardline Islamic State member. Today, dismissing her appeal against the removal of the British passport Justice Sue Carr said some may feel she’s the “author of her own misfortune”. The three bright straight-A students from Bethnal Green Academy – Begum, 15, Kadiza S…