(Reuters) -UK’s FTSE 100 rebounded on Friday as a move by China to support its economy lifted sentiment at the end of a rocky week for markets, while e-commerce firm THG soared after rejecting a takeover proposal. The blue-chip FTSE 100 index added 1.2%, while domestically focussed FTSE 250 index added 0.8%, erasing nearly all of their weekly declines. Healthcare and banking stocks were the top boosts to the FTSE 100 after China cut a key lending benchmark by a sharper-than-expected 15 basis points to aid a slowing economy. THG surged 24.5% as it rejected a takeover proposal from two investmen…