This function saves the ggfigdone data to the disk.
By default, when using the fd_load funciton to load the databse, the data will be automatically saved to the disk when changes are made.
But if you set the auto_database_upgrade argument to FALSE in fd_load, you need to manually save the data using this function.
fd_save(fdObj = fd_get_db(), do_lock = TRUE)An object of class fdObj.
A logical value. If TRUE, the function will lock the database file when saving the data.
No return value, changes are made directly to the ggfigdone database.