Rename to stripe_session to avoid confusions

saas/app/controllers/account/subscriptions_controller.rb

@@ -23,7 +23,7 @@ class Account::SubscriptionsController < ApplicationController
 
   private
     def set_stripe_session
-      @session = Stripe::Checkout::Session.retrieve(params[:session_id]) if params[:session_id]
+      @stripe_session = Stripe::Checkout::Session.retrieve(params[:session_id]) if params[:session_id]
     end
 
     def find_or_create_stripe_customer

saas/app/views/account/subscriptions/show.html.erb

@@ -1,6 +1,6 @@
 <% @page_title = "Thank you" %>
 
-<% if @session&.payment_status == "paid" %>
+<% if @stripe_session&.payment_status == "paid" %>
   <section class="panel panel--wide panel--centered center borderless">
     <h1 class="txt-x-large font-weight-black margin-none">Thanks for buying Fizzy!</h1>
     <p class="txt-medium margin-none-block-start">Your payment was successful. You’re now on the <strong><%= Current.account.plan.name %></strong> plan.</p>