feat: add support for singleLevel query parameter in folders API #647

AaronDDM merged 2 commits intomainnylas/nylas-nodejs:mainfrom

TW-3956-add-sdk-support-for-the-new-single-level-folders-endpoint-query-paramnylas/nylas-nodejs:TW-3956-add-sdk-support-for-the-new-single-level-folders-endpoint-query-paramCopy head branch name to clipboard