The search text changes asyncronously, also listen for text change events
The search text changes asyncronously, also listen for text change events

Fixes #576
MightyPork/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MightyPork/Google-Play-Music-Desktop-Player-UNOFFICIAL-,petuhovskiy/Google-Play-Music-Desktop-Player-UNOFFICIAL-,bjohnso5/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MarshallOfSound/Google-Play-Music-Desktop-Player-UNOFFICIAL-,mattcfox/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MightyPork/Google-Play-Music-Desktop-Player-UNOFFICIAL-,petuhovskiy/Google-Play-Music-Desktop-Player-UNOFFICIAL-,n4k1/Google-Play-Music-Desktop-Player-UNOFFICIAL-,bjohnso5/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MCManuelLP/Google-Play-Music-Desktop-Player-UNOFFICIAL-,mattcfox/Google-Play-Music-Desktop-Player-UNOFFICIAL-,mattcfox/Google-Play-Music-Desktop-Player-UNOFFICIAL-,n4k1/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MCManuelLP/Google-Play-Music-Desktop-Player-UNOFFICIAL-,n4k1/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MarshallOfSound/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MCManuelLP/Google-Play-Music-Desktop-Player-UNOFFICIAL-,petuhovskiy/Google-Play-Music-Desktop-Player-UNOFFICIAL-,bjohnso5/Google-Play-Music-Desktop-Player-UNOFFICIAL-,MarshallOfSound/Google-Play-Music-Desktop-Player-UNOFFICIAL-