Issue Summary

While adding a new question, it is allowed to set a custom ID to a question that adds the corner case for reserved keywords. Currently, it just restricts keeping duplicate question IDs and any IDs from hidden fields.

Reserved keywords: source, suID, userId

(please check the exact casing and find any more keywords.)

Steps to Reproduce

1. Create a survey, add a new question to it, and edit the id for it
2. add any reserved query param keyword.

Expected behavior

It should not allow the use of reserved keywords in question ID.

Other information

No response

Screenshots

No response

Environment

• Formbricks Cloud (app.formbricks.com)
• Self-hosted Formbricks

Desktop (please complete the following information)

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