Add translation for edit in the web app (#64)

i18n/locales/de-DE.json

@@ -79,5 +79,6 @@
   "previewKeyInvalidLabel": "Ihr Preview API Zugangsschlüssel ist ungültig.",
   "beginnerLabel": "Anfänger",
   "intermediateLabel": "Fortgeschrittener",
-  "advancedLabel": "Experte"
+  "advancedLabel": "Experte",
+  "editInTheWebAppLabel": "In der web app bearbeiten"
 }

i18n/locales/en-US.json

@@ -79,5 +79,6 @@
   "previewKeyInvalidLabel": "Your Preview API key is invalid.",
   "beginnerLabel": "Beginner",
   "intermediateLabel": "Intermediate",
-  "advancedLabel": "Advanced"
+  "advancedLabel": "Advanced",
+  "editInTheWebAppLabel": "Edit in the web app"
 }

views/mixins/_editorialFeatures.pug

@@ -11,7 +11,7 @@ mixin editorialFeatures(entry)
           href=`https://app.contentful.com/spaces/${settings.spaceId}/entries/${entry.sys.id}`
           target='_blank'
           rel='noopener'
-        ) Edit in the web app
+        ) #{translate('editInTheWebAppLabel', currentLocale.code)}
         .editorial-features__hint-wrapper
           svg.editorial-features__hint-icon
             use(xlink:href='/icons/icons.svg#info')