Improve permission list in RS emails

app/mailers/notification_mailer.rb

@@ -9,6 +9,11 @@ class NotificationMailer < ApplicationMailer
   def remotestorage_auth_created
     @user = params[:user]
     @auth = params[:auth]
+    @permissions = @auth.permissions.map do |p|
+      access = p.split(":")[1] == 'r' ? 'read' : 'read/write'
+      directory = p.split(':')[0] == '' ? 'all folders and files' : p.split(':')[0]
+      "#{access} #{directory}"
+    end
     @subject = "New app connected to your storage"
     mail to: @user.email, subject: @subject
   end