Fixes issue with emoji comments not showing correct emoji image

Previously it would look for the unicode character inside the award menu. But this menu might not always be there.

Now, the unicode characters are loaded onto the page in an array which the award emoji that looks in to get the correct emoji unicode character

Fixes #15512

app/assets/javascripts/awards_handler.coffee

 class @AwardsHandler
-  constructor: (@get_emojis_url, @post_emoji_url, @noteable_type, @noteable_id, @aliases) ->
+  constructor: (@get_emojis_url, @post_emoji_url, @noteable_type, @noteable_id, @unicodes) ->
     $(".js-add-award").on "click", (event) =>
       event.stopPropagation()
       event.preventDefault()
@@ -146,15 +146,7 @@ class @AwardsHandler
     $('.award-control').tooltip()
 
   resolveNameToCssClass: (emoji) ->
-    emoji_icon = $(".emoji-menu-content [data-emoji='#{emoji}']")
-
-    if emoji_icon.length > 0
-      unicodeName = emoji_icon.data("unicode-name")
-    else
-      # Find by alias
-      unicodeName = $(".emoji-menu-content [data-aliases*=':#{emoji}:']").data("unicode-name")
-
-    "emoji-#{unicodeName}"
+    "emoji-#{@unicodes[emoji]}"
 
   postEmoji: (emoji, callback) ->
     $.post @post_emoji_url, { note: {
@@ -174,7 +166,7 @@ class @AwardsHandler
     }, 200)
 
   normilizeEmojiName: (emoji) ->
-    @aliases[emoji] || emoji
+    emoji
 
   addEmojiToFrequentlyUsedList: (emoji) ->
     frequently_used_emojis = @getFrequentlyUsedEmojis()

app/views/votes/_votes_block.html.haml

@@ -19,12 +19,12 @@
     var post_emoji_url = "#{award_toggle_namespace_project_notes_path(@project.namespace, @project)}";
     var noteable_type = "#{votable.class.name.underscore}";
     var noteable_id = "#{votable.id}";
-    var aliases = #{AwardEmoji.aliases.to_json};
+    var unicodes = #{AwardEmoji.unicode.to_json};
 
     window.awards_handler = new AwardsHandler(
       get_emojis_url,
       post_emoji_url,
       noteable_type,
       noteable_id,
-      aliases
+      unicodes
     );

lib/award_emoji.rb

@@ -52,6 +52,11 @@ class AwardEmoji
     end
   end
 
+  def self.unicode
+    emojis
+    emojis.map{|key, value| { key => emojis[key]["unicode"] } }.inject(:merge!)
+  end
+
   def self.aliases
     @aliases ||= begin
       json_path = File.join(Rails.root, 'fixtures', 'emojis', 'aliases.json' )