Is it possible to move/copy the files in the staging WordPress site to the live site?
The Copy Data feature can be used for that:
Go to Domains > example.com > WordPress:
Click the Copy Data button next to the name of the WordPress installation that is required to synchronize:
Select the target WordPress installation to synchronize the data. This WordPress installation may be related to the same or another subscription:
Under Select Content to be Copied, select which data you want to synchronize with the destination WordPress site:
Note: In case copying failed, a Restore Point in Domains > example.com > WordPress > Restore Point can be used to rollback the previous state. The files
web.configwill not be synchronized as changing of these files may disrupt the operation of WordPress.
Refer to the WordPress Toolkit [Synchronization of WordPress Sites] documentation chapter for more details.