Disable case sensitivity on username register/login?

              <SignupForm
                additionalFields={(form, state) => {
                  return (
                    <>
                      <FormItemGroup>
                        <div className="mb-4">
                          <label className="block text-md font-bold">
                            Username
                          </label>
                          <label className="block text-sm font-light mb-2">
                            You'll use this when logging in.
                          </label>
                          <input
                            {...form.register("username")}
                            className="input w-full mb-2"
                            id="username"
                            onChange={(e) => {
                              e.target.value = e.target.value.toLowerCase();
                              form.register("username").onChange(e);
                            }}
                          />