Add emoji autosuggest (#5053)

* Add emoji autosuggest

Some credit goes to glitch-soc/mastodon#149

* Remove server-side shortcode->unicode conversion

* Insert shortcode when suggestion is custom emoji

* Remove remnant of server-side emojis

* Update style of autosuggestions

* Fix wrong emoji filenames generated in autosuggest item

* Do not lazy load emoji picker, as that no longer works

* Fix custom emoji autosuggest

* Fix multiple "Custom" categories getting added to emoji index, only add once

1 files changed, 0 insertions, 40 deletions

diff --git a/app/lib/emoji.rb b/app/lib/emoji.rb
deleted file mode 100644
index 45b7f53de..000000000
--- a/app/lib/emoji.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# frozen_string_literal: true
-
-require 'singleton'
-
-class Emoji
-  include Singleton
-
-  def initialize
-    data = Oj.load(File.open(Rails.root.join('lib', 'assets', 'emoji.json')))
-
-    @map = {}
-
-    data.each do |_, emoji|
-      keys    = [emoji['shortname']] + emoji['aliases']
-      unicode = codepoint_to_unicode(emoji['unicode'])
-
-      keys.each do |key|
-        @map[key] = unicode
-      end
-    end
-  end
-
-  def unicode(shortcode)
-    @map[shortcode]
-  end
-
-  def names
-    @map.keys
-  end
-
-  private
-
-  def codepoint_to_unicode(codepoint)
-    if codepoint.include?('-')
-      codepoint.split('-').map(&:hex).pack('U*')
-    else
-      [codepoint.hex].pack('U')
-    end
-  end
-end