Add description to manifest file

Hello,

I’m trying to deploy my app to the Microsoft store. To do so, I’m using PWA builder. All works good, the only problem is that I need to add a description to the manifest file, otherwise Microsoft won’t allow it in the store. Unfortunately, I can’t do that in the editor:
image

This is the link to the manifest file https://app.winchange.io/manifest.json?_wwcv=48 is there any way to add the description? (Note that adding a description to the page itself doesn’t have any effect on the file. I also tried adding “{“description”: desc}” to the structured data section, but it’s not working, either.

Any idea?

Thanks in advance!