By Vitalii Yalahuzian and Sam Tabahriti LONDON (Reuters) – Seeking solace in a turbulent world, Jennie Brennan and Jacob Peter have found an unlikely source of wellbeing: quietly rescuing and rehabilitating London’s pigeons. Pigeons in urban areas often suffer from a preventable condition known as “stringfoot,” in which litter such as thread, fishing line or human hair becomes entangled around