Fix ReactionType not remembering animated status. (#965)

src/model/channel/reaction.rs

@@ -431,7 +431,7 @@ impl From<EmojiId> for ReactionType {
 impl From<EmojiIdentifier> for ReactionType {
     fn from(emoji_id: EmojiIdentifier) -> ReactionType {
         ReactionType::Custom {
-            animated: false,
+            animated: emoji_id.animated,
             id: emoji_id.id,
             name: Some(emoji_id.name)
         }