Title: Bug: "Failed to fetch" error during user registration #1
Description
When attempting to create a new account on the registration page, the process fails and displays a "Failed to fetch" error message at the top of the form.
Observed Behavior
A red error banner appears with the message: Failed to fetch. The registration is not completed, and no confirmation or redirection occurs.
Expected Behavior
The registration data should be successfully sent to the server, and the user should be either redirected to a success page or logged in automatically.
Technical Context (Screenshot)
The error suggests a network-level failure or a CORS (Cross-Origin Resource Sharing) issue between the client and the API.
