By Dawn Chmielewski LOS ANGELES, Jan 20 (Reuters) - Netflix has switched to an all-cash offer for Warner Bros Discovery's studio and streaming assets without increasing the $82.7 billion price in a bid to shut the door on Paramount's rival efforts to snag the Hollywood giant. The new all-cash bid - at$27.75 a share - has unanimous support from the Warner Bros board, according to a Tuesday regulatory filing. Both Netflix ​and Paramount Skydance covet Warner Bros for its leading film and television stud ...