Rubocop updates (#1118)

* Minimal code style enforcement

* Formatting and lint code updates (no change in functionality)

app/controllers/registrations_controller.rb

@@ -28,17 +28,17 @@ class RegistrationsController < ApplicationController
 
   private
 
-  def set_user
-    @user = User.new user_params.except(:invite_code)
-  end
-
-  def user_params
-    params.require(:user).permit(:name, :email, :password, :password_confirmation, :invite_code)
-  end
-
-  def claim_invite_code
-    unless InviteCode.claim! params[:user][:invite_code]
-      redirect_to new_registration_path, alert: t("registrations.create.invalid_invite_code")
+    def set_user
+      @user = User.new user_params.except(:invite_code)
+    end
+
+    def user_params
+      params.require(:user).permit(:name, :email, :password, :password_confirmation, :invite_code)
+    end
+
+    def claim_invite_code
+      unless InviteCode.claim! params[:user][:invite_code]
+        redirect_to new_registration_path, alert: t("registrations.create.invalid_invite_code")
+      end
     end
-  end
 end