🐛 Bug Report: User mapping code is not correct for prefs field

[ugurcany]

👟 Reproduction steps

In User model, fromMap() and toMap() methods do not share exact opposite logic for prefs mapping. When you convert a User object to a Map, you would also expect to be able to re-convert that Map to User using fromMap method. It does not do that right now for the prefs field.

I created this PR to fix this issue, but apparently it does not allow us to create PRs here, so it's automatically closed. I also checked the sdk generator repo, but I don't have time to understand how it works to fix this minor mapping issue.

👍 Expected behavior

In User model, fromMap() and toMap() methods need to share exact opposite logic for prefs mapping.

👎 Actual Behavior

In User model, fromMap() and toMap() methods do not share exact opposite logic for prefs mapping.

🎲 Appwrite version

Version 2.0.x

💻 Operating system

Windows

🧱 Your Environment

No response

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct