fix: return empty emoji list for polls for masto app

packages/megalodon/src/entities/poll.ts

@@ -9,5 +9,6 @@ namespace Entity {
     votes_count: number
     options: Array<PollOption>
     voted: boolean
+    emojis?: []
   }
 }

packages/megalodon/src/misskey/api_client.ts

@@ -254,6 +254,7 @@ namespace MisskeyAPI {
         votes_count: count,
         options: Array.isArray(p.choices) ? p.choices.map(c => choice(c)) : [],
         voted: Array.isArray(p.choices) ? p.choices.some(c => c.isVoted) : false,
+        emojis: [],
       }
     }