Cannot publish a large channel

Observed behavior

Observed while testing https://github.com/learningequality/studio/pull/4002 today - every time I attempt to publish a large channel (5K resources) at some point it seems to time out without any clear indication to the user. Sometimes both the Unpublished and Publish buttons are displayed simultaneously.

Expected behavior

The channel should be published successfully. In case there is a server timeout or any other type of error this should be communicated to the user as otherwise it's quite confusing.

Steps to reproduce the issue

1. Go to https://hotfixes.studio.learningequality.org/en/accounts/#/ and sign in
2. Create a brand new channel add import multiple folders and resources from a large channel such as CK-12
3. Click the Publish button and wait

Additional information

Video:

https://github.com/learningequality/studio/assets/79847249/23a97448-f4f2-4fe3-b103-6365e03cf95e

Usage Details

• OS: Windows 10, Ubuntu
• Browser: Chrome
• URL: https://hotfixes.studio.learningequality.org/

Start by reproducing the Publish flow from the listed hotfixes.studio.learningequality.org URL with a large channel such as CK-12, using the provided video and PR #4002 as context. Trace what happens when publishing reaches a timeout and verify the final state shown by the Unpublished and Publish buttons. Done means large channels publish successfully, or any server timeout or other error is clearly communicated to the user.