Add member variable @user for mailer templates

lib/additionals/gemify.rb

@@ -3,7 +3,7 @@
 module Additionals
   class Gemify
     class << self
-      # install emoji fallback assets from gem (without asset pipline)
+      # install emoji fallback assets from gem (without asset pipeline)
       def install_emoji_assets
         Additionals.debug 'install_emoji_assets'
         return Rails.logger.error 'TanukiEmoji class for emoji not found' unless defined? TanukiEmoji

lib/additionals/patches/mailer_patch.rb

@@ -39,6 +39,7 @@ module Additionals
           message_id entity
 
           @author = entity.author
+          @user = user
           @entity = entity
           @entity_url = entity_url
 
@@ -52,6 +53,7 @@ module Additionals
           message_id journal
 
           @author = journal.user
+          @user = user
           @entity = entity
           @entity_url = entity_url