refactor: add pinned getter to Message entity

src/api/routes/channels/#channel_id/messages/#message_id/index.ts

@@ -133,7 +133,7 @@ router.patch(
 			mentions: new_message.embeds,
 			mention_roles: new_message.mention_roles,
 			mention_everyone: new_message.mention_everyone,
-			pinned: new_message.pinned_at != null,
+			pinned: new_message.pinned,
 			timestamp: new_message.timestamp,
 			edited_timestamp: new_message.edited_timestamp,
 

src/api/routes/guilds/#guild_id/messages/search.ts

@@ -155,7 +155,7 @@ router.get(
 				embeds: x.embeds,
 				mentions: x.mentions,
 				mention_roles: x.mention_roles,
-				pinned: x.pinned_at != null,
+				pinned: x.pinned,
 				mention_everyone: x.mention_everyone,
 				tts: x.tts,
 				timestamp: x.timestamp,