finish layouts i18n, use help url from config, use html language from locale

config/locales/de/de.layouts.yml

@@ -0,0 +1,22 @@
+de:
+  layouts:
+    foodsoft: 'Foodsoft'
+    logo: '<span>food</span>soft'
+    header:
+      profile: 'Profil bearbeiten'
+      ordergroup: 'Meine Bestellgruppe'
+      logout: 'Abmelden'
+      help: 'Hilfe'
+      feedback:
+        title: 'Feedback'
+        desc: 'Fehler gefunden? Vorschlag? Idee? Kritik?'
+      footer: 'Foodsoft, open source software to manage a non-profit food coop.'
+    email:
+      footer: '
+        --
+        Foodsoft: %{foodsoft}
+        Foodcoop-Homepage: %{foodcoop}
+        Hilfe/Help: %{help}
+        '
+    application1:
+      title: 'Foodsoft - %{title}'