EXCLUSIVE: In her first major TV role since her co-starring turn as fan-favorite Shoshanna Shapiro on HBO’s Girls, Zosia Mamet has been cast opposite Ellen Page in Armistead Maupin's Tales of the City, its 10-episode limited series revival. Based on the books by Armistead Maupin, this next chapter – Armistead Maupin's Tales of the City – follows Mary Ann (Laura Linney), who returns home to San Francisco and is reunited with her daughter Shawna (Page) and ex-husband Brian…