Rejected for a Canadian visa six times thanks to her \u2018unique\u2019 Pakistani passport, debut artist Almitra Mavalvala moved to Australia and channelled her rage into Blacklisted, a one-woman, genre-bending show. In an episode that blends the stage and storytelling, audio producer Karishma Luthria and Almitra discuss navigating new identities and the importance of theatre in creating community