Function set_user_field 

pub async fn set_user_field(
    user_id: i32,
    field: &str,
    value: &str,
) -> HttpResponse

Set a user field in the database.

This function updates a specific field in the users table for a given user ID.

Arguments

• user_id: The ID of the user to update the field for.
• field: The name of the field to update.
• value: The new value to set for the field.

Returns

An HttpResponse indicating the success or failure of the operation.