Return outshares in Vault
Return outshares in Vault

Historically, folders in Inbox/Vault couldn't be shared. However, with
Backups Rework, users can read-only share folders in Vault, so the two
relevant methods will search for outgoing and pending shares in Vault
too, not only in Files.

meganz/sdk,meganz/sdk,meganz/sdk,meganz/sdk,meganz/sdk,meganz/sdk,meganz/sdk