fix "who reacted" emoji display

fixes #80

src/components/emoji_reactions/emoji_reactions.js

@@ -27,7 +27,11 @@ const EmojiReactions = {
     },
     accountsForEmoji () {
       return this.status.emoji_reactions.reduce((acc, reaction) => {
-        acc[reaction.name] = reaction.accounts || []
+        if (reaction.url) {
+          acc[reaction.url] = reaction.accounts || []
+        } else {
+          acc[reaction.name] = reaction.accounts || []
+        }
         return acc
       }, {})
     },
@@ -42,6 +46,14 @@ const EmojiReactions = {
     reactedWith (emoji) {
       return this.status.emoji_reactions.find(r => r.name === emoji).me
     },
+    isLocalReaction (emojiUrl) {
+      if (!emojiUrl) return true
+      const reacted = this.accountsForEmoji[emojiUrl]
+      if (reacted.length === 0) {
+        return true
+      }
+      return reacted[0].is_local
+    },
     fetchEmojiReactionsByIfMissing () {
       const hasNoAccounts = this.status.emoji_reactions.find(r => !r.accounts)
       if (hasNoAccounts) {