[CodeMirror] Fix clipboard DOM events (#44576)
[CodeMirror] Fix clipboard DOM events (#44576)


georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,dsebastien/DefinitelyTyped,mcliment/DefinitelyTyped,dsebastien/DefinitelyTyped