Downloading workflow from the hub produces incorrect JSON

[colinthebomb1]

Description

When downloading a workflow from the user's workflow list in the hub, the generated JSON file has an incorrect structure that prevents it from being re-uploaded and loaded properly. However, downloading the same workflow using the "Export Workflow" button within the workflow editor produces a correctly formatted JSON file.

Steps to Reproduce

1. Navigate to the Hub workflow list
2. Select a workflow and click the download button
3. Examine the downloaded JSON file
4. Attempt to re-upload the downloaded workflow
5. Observe that the workflow fails to load correctly

Incorrect JSON Download Button:

Incorrect JSON with content object (download from hub):

Correct JSON (downloaded from "export workflow"):

[chenlica]

@colinthebomb1 Please include screenshots to describe the problem.

[chenlica]

Please also include a site screenshot of the page where a user clicks a workflow to reproduce the problem.