Enabled inventory by default

Currently inventory is enabled by default, but we enventually want to
disabled it by default. So we disable inventory for specs, it will be
enabled on specific specs to test inventory related code path.

lib/open_food_network/feature_toggle.rb

@@ -76,6 +76,9 @@ module OpenFoodNetwork
       "admin_style_v3" => <<~DESC,
         Test the work-in-progress design updates.
       DESC
+      "inventory" => <<~DESC,
+        Enable the inventory.
+      DESC
     }.freeze
 
     def self.setup!

spec/base_spec_helper.rb

@@ -158,6 +158,9 @@ RSpec.configure do |config|
   config.before(:each) do
     Flipper.features.each(&:remove)
     OpenFoodNetwork::FeatureToggle.setup!
+    # Inventory is currently enabled by default, but we enventually when to disable it by default.
+    # Disabling it here allows us to test inventory specific code path
+    Flipper.disable(:inventory)
   end
 
   config.before(:each, :feature) do |example|