Initial pass at Plaid EU (#1555)

* Initial pass at Plaid EU

* Add EU support to Plaid Items

* Lint

* Temp fix for rubocop isseus

* Merge cleanup

* Pass in region and get tests passing

* Use absolute path for translation

---------

Signed-off-by: Josh Pigford <josh@joshpigford.com>

test/controllers/plaid_items_controller_test.rb

@@ -21,6 +21,7 @@ class PlaidItemsControllerTest < ActionDispatch::IntegrationTest
       post plaid_items_url, params: {
         plaid_item: {
           public_token: public_token,
+          region: "us",
           metadata: { institution: { name: "Plaid Item Name" } }
         }
       }

test/models/plaid_item_test.rb

@@ -9,9 +9,7 @@ class PlaidItemTest < ActiveSupport::TestCase
 
   test "removes plaid item when destroyed" do
     @plaid_provider = mock
-
-    PlaidItem.stubs(:plaid_provider).returns(@plaid_provider)
-
+    @plaid_item.stubs(:plaid_provider).returns(@plaid_provider)
     @plaid_provider.expects(:remove_item).with(@plaid_item.access_token).once
 
     assert_difference "PlaidItem.count", -1 do
@@ -21,9 +19,7 @@ class PlaidItemTest < ActiveSupport::TestCase
 
   test "if plaid item not found, silently continues with deletion" do
     @plaid_provider = mock
-
-    PlaidItem.stubs(:plaid_provider).returns(@plaid_provider)
-
+    @plaid_item.stubs(:plaid_provider).returns(@plaid_provider)
     @plaid_provider.expects(:remove_item).with(@plaid_item.access_token).raises(Plaid::ApiError.new("Item not found"))
 
     assert_difference "PlaidItem.count", -1 do