Issue listing shared items

My team has a lot of shared files and directories on a business OneDrive account and this package has worked well in accessing them. However, we noticed this week that when listing shared files or items the responses are not what we would expect. When performing the code below we each get a random smattering of files. Not a list of folders and files like we used to get. Any ideas?

```
#Code I ran

library(AzureGraph)
gr <- get_graph_login()
me <- gr$get_user()
my_drive <- me$do_operation("drive/sharedWithMe")

```

Start by reproducing the shared-item listing shown with AzureGraph: get_graph_login(), get_user(), and do_operation("drive/sharedWithMe"). Compare the returned items with the expected folders and files, then determine whether the changed response is handled in the package or comes from the Microsoft Graph endpoint; done means shared-item listings are returned as expected or the incompatibility is clearly documented.

索引モデルが issue の本文から書いたものです。