Moved flavour UI into own prefs tab

app/views/settings/flavours/show.html.haml

@@ -0,0 +1,16 @@
+- content_for :page_title do
+  = t "flavours.#{@selected}.name", default: @selected
+
+= simple_form_for current_user, url: settings_flavour_path(@selected), html: { method: :put } do |f|
+  = render 'shared/error_messages', object: current_user
+
+  .flavour-description
+    = t "flavours.#{@selected}.description", default: ''
+
+  %hr/
+
+  .fields-group
+    = f.input :setting_skin, collection: Themes.instance.skins_for(@selected), label_method: lambda { |skin| I18n.t("skins.#{@selected}.#{skin}", default: skin) }, wrapper: :with_label, include_blank: false
+
+  .actions
+    = f.button :button, t('generic.use_this'), type: :submit