[office-js-preview] (Outlook) Add getItemIdAsync (#35934)
[office-js-preview] (Outlook) Add getItemIdAsync (#35934)

* [office-js-preview] (Outlook) Add getItemIdAsync

* Updates based on feedback

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