Add images to accepted file types and correctly navigate folders

[KronemeyerJoshua]

This addresses a couple issues with the SharePoint Logic App

• If you point the SharePoint Logic app to a nested directory with folders, it does not correctly navigate all the folders
• Images were not in the config file generation
• If you had a folder that contained files, but none of those were an accepted file type, it would attempt to check blob storage for those files. If this was the last folder to be checked, the logic app would tell you it failed when it actually succeeded