Add an EmojiMap which is like an EmoteMap except it contains data for Emojis

Fix emote popup not inserting the correct emoji value on click. It no
inserts the shortcode (i.e. 👌)

Fix #299

src/emojis.hpp

@@ -1,5 +1,7 @@
 #pragma once
 
+#include "util/emotemap.hpp"
+
 #include <QString>
 
 namespace chatterino {
@@ -13,6 +15,14 @@ struct EmojiData {
 
     // i.e. thinking
     QString shortCode;
+
+    util::EmoteData emoteData;
 };
 
+namespace util {
+
+using EmojiMap = ConcurrentMap<QString, EmojiData>;
+
+}  // namespace util
+
 }  // namespace chatterino