By Jeremy Armstrong The wives and girlfriends of England footballers have been warned not to flash their bling before the Euros. Some stars are building panic rooms at their luxury homes after a series of raids on the homes of Premier League footballers. A large group of ‘WAGS’, including Fern Maguire, 28, wife of Man Utd defender Harry, and keeper Jordan Pickford’s wife Megan Davison, 27, are set to follow captain Harry Kane and his side in Germany. Jack Grealish’s girlfriend, the fashion model and influencer Sasha Attwood, 27, and Luke Shaw’s partner Anouska Santos, 31, are also likely to tr…