Add proper types for <webview> events
Add proper types for <webview> events

zuzusik/DefinitelyTyped,amir-arad/DefinitelyTyped,magny/DefinitelyTyped,benishouga/DefinitelyTyped,progre/DefinitelyTyped,tan9/DefinitelyTyped,frogcjn/DefinitelyTyped,psnider/DefinitelyTyped,isman-usoh/DefinitelyTyped,abner/DefinitelyTyped,markogresak/DefinitelyTyped,Zzzen/DefinitelyTyped,paulmorphy/DefinitelyTyped,nobuoka/DefinitelyTyped,AgentME/DefinitelyTyped,jraymakers/DefinitelyTyped,sledorze/DefinitelyTyped,scriby/DefinitelyTyped,hellopao/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,ashwinr/DefinitelyTyped,mareek/DefinitelyTyped,jraymakers/DefinitelyTyped,nycdotnet/DefinitelyTyped,nycdotnet/DefinitelyTyped,HPFOD/DefinitelyTyped,subash-a/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,mattblang/DefinitelyTyped,aciccarello/DefinitelyTyped,aciccarello/DefinitelyTyped,minodisk/DefinitelyTyped,reppners/DefinitelyTyped,arusakov/DefinitelyTyped,florentpoujol/DefinitelyTyped,minodisk/DefinitelyTyped,yuit/DefinitelyTyped,micurs/DefinitelyTyped,emanuelhp/DefinitelyTyped,subash-a/DefinitelyTyped,progre/DefinitelyTyped,QuatroCode/DefinitelyTyped,AgentME/DefinitelyTyped,chrismbarr/DefinitelyTyped,arma-gast/DefinitelyTyped,johan-gorter/DefinitelyTyped,zuzusik/DefinitelyTyped,emanuelhp/DefinitelyTyped,benishouga/DefinitelyTyped,Zzzen/DefinitelyTyped,newclear/DefinitelyTyped,greglo/DefinitelyTyped,mareek/DefinitelyTyped,AgentME/DefinitelyTyped,raijinsetsu/DefinitelyTyped,gcastre/DefinitelyTyped,alvarorahul/DefinitelyTyped,jimthedev/DefinitelyTyped,mcliment/DefinitelyTyped,dsebastien/DefinitelyTyped,raijinsetsu/DefinitelyTyped,alexdresko/DefinitelyTyped,abbasmhd/DefinitelyTyped,georgemarshall/DefinitelyTyped,reppners/DefinitelyTyped,tan9/DefinitelyTyped,psnider/DefinitelyTyped,georgemarshall/DefinitelyTyped,abner/DefinitelyTyped,rcchen/DefinitelyTyped,donnut/DefinitelyTyped,daptiv/DefinitelyTyped,QuatroCode/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,mattblang/DefinitelyTyped,arusakov/DefinitelyTyped,aciccarello/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,AbraaoAlves/DefinitelyTyped,isman-usoh/DefinitelyTyped,pocesar/DefinitelyTyped,rcchen/DefinitelyTyped,nfriend/DefinitelyTyped,pocesar/DefinitelyTyped,nainslie/DefinitelyTyped,schmuli/DefinitelyTyped,alvarorahul/DefinitelyTyped,hellopao/DefinitelyTyped,arusakov/DefinitelyTyped,Litee/DefinitelyTyped,use-strict/DefinitelyTyped,mcrawshaw/DefinitelyTyped,johan-gorter/DefinitelyTyped,Penryn/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,benliddicott/DefinitelyTyped,EnableSoftware/DefinitelyTyped,syuilo/DefinitelyTyped,martinduparc/DefinitelyTyped,martinduparc/DefinitelyTyped,mhegazy/DefinitelyTyped,borisyankov/DefinitelyTyped,georgemarshall/DefinitelyTyped,ashwinr/DefinitelyTyped,rolandzwaga/DefinitelyTyped,zuzusik/DefinitelyTyped,gcastre/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,schmuli/DefinitelyTyped,borisyankov/DefinitelyTyped,damianog/DefinitelyTyped,shlomiassaf/DefinitelyTyped,smrq/DefinitelyTyped,EnableSoftware/DefinitelyTyped,gandjustas/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,chrootsu/DefinitelyTyped,danfma/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,Penryn/DefinitelyTyped,syuilo/DefinitelyTyped,pwelter34/DefinitelyTyped,donnut/DefinitelyTyped,pocesar/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,xStrom/DefinitelyTyped,shlomiassaf/DefinitelyTyped,stephenjelfs/DefinitelyTyped,Ptival/DefinitelyTyped,YousefED/DefinitelyTyped,frogcjn/DefinitelyTyped,YousefED/DefinitelyTyped,magny/DefinitelyTyped,sledorze/DefinitelyTyped,xStrom/DefinitelyTyped,nobuoka/DefinitelyTyped,psnider/DefinitelyTyped,rolandzwaga/DefinitelyTyped,damianog/DefinitelyTyped,amanmahajan7/DefinitelyTyped,ryan-codingintrigue/DefinitelyTyped,smrq/DefinitelyTyped,alexdresko/DefinitelyTyped,greglo/DefinitelyTyped,gandjustas/DefinitelyTyped,martinduparc/DefinitelyTyped,chrootsu/DefinitelyTyped,Litee/DefinitelyTyped,newclear/DefinitelyTyped,danfma/DefinitelyTyped,benishouga/DefinitelyTyped,georgemarshall/DefinitelyTyped,schmuli/DefinitelyTyped,mcrawshaw/DefinitelyTyped,amanmahajan7/DefinitelyTyped,use-strict/DefinitelyTyped,Ptival/DefinitelyTyped,paulmorphy/DefinitelyTyped,musicist288/DefinitelyTyped,arma-gast/DefinitelyTyped,dsebastien/DefinitelyTyped,HPFOD/DefinitelyTyped,jimthedev/DefinitelyTyped,jimthedev/DefinitelyTyped,one-pieces/DefinitelyTyped,stephenjelfs/DefinitelyTyped,axelcostaspena/DefinitelyTyped,abbasmhd/DefinitelyTyped,AgentME/DefinitelyTyped,scriby/DefinitelyTyped,nainslie/DefinitelyTyped,yuit/DefinitelyTyped,mhegazy/DefinitelyTyped,chrismbarr/DefinitelyTyped,chbrown/DefinitelyTyped,hellopao/DefinitelyTyped,florentpoujol/DefinitelyTyped,pwelter34/DefinitelyTyped,AbraaoAlves/DefinitelyTyped