[@types/react-data-grid] Adding missing types to support Tree Views (#40279)
[@types/react-data-grid] Adding missing types to support Tree Views (#40279)

* Adding missing types to support trees for react-data-grid

* Applying minor changes as suggested by SupernaviX

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