Allow speeches to be translated

* Metadata module added in right-to-left support
* Add right to left styling for speeches (matches case-studies approach)

app/assets/stylesheets/views/_speech.scss

@@ -3,4 +3,9 @@
   @include description;
   @include history-notice;
   @include withdrawal-notice;
+
+  .direction-rtl & {
+    direction: rtl;
+    text-align: start;
+  }
 }

test/integration/speech_test.rb

@@ -9,6 +9,14 @@ class SpeechTest < ActionDispatch::IntegrationTest
     assert_has_component_govspeak(@content_item["details"]["body"])
   end
 
+  test "translated speech" do
+    setup_and_visit_content_item('speech-translated')
+
+    assert_has_component_title(@content_item["title"])
+    assert page.has_text?(@content_item["description"])
+    assert page.has_css?('.available-languages')
+  end
+
   test "renders metadata and document footer, including speaker" do
     setup_and_visit_content_item('speech')