Make emoji reactions use Still-Image functionality

src/components/emoji_reactions/emoji_reactions.js

@@ -1,5 +1,6 @@
 import UserAvatar from '../user_avatar/user_avatar.vue'
 import UserListPopover from '../user_list_popover/user_list_popover.vue'
+import StillImage from '../still-image/still-image.vue'
 
 const EMOJI_REACTION_COUNT_CUTOFF = 12
 
@@ -12,7 +13,8 @@ const EmojiReactions = {
   name: 'EmojiReactions',
   components: {
     UserAvatar,
-    UserListPopover
+    UserListPopover,
+    StillImage
   },
   props: ['status'],
   data: () => ({

src/components/emoji_reactions/emoji_reactions.vue

@@ -14,12 +14,13 @@
         <span
           v-if="reaction.url !== null"
         >
-          <img
+          <StillImage
             :src="reaction.url"
             :title="reaction.name"
+            :alt="reaction.name"
             class="reaction-emoji"
             height="2.55em"
-          >
+          />
           {{ reaction.count }}
         </span>
         <span v-else>