docs: Fix DeveloperPortalApplication

src/client/Client.js

@@ -266,6 +266,10 @@ class Client extends BaseClient {
     return this.readyAt ? Date.now() - this.readyAt : null;
   }
 
+  /**
+   * @external VoiceConnection
+   * @see {@link https://discord.js.org/#/docs/voice/main/class/VoiceConnection}
+   */
   /**
    * Get connection to current call
    * @type {?VoiceConnection}

src/structures/DeveloperPortalApplication.js

@@ -9,6 +9,10 @@ const SnowflakeUtil = require('../util/SnowflakeUtil');
 
 const AssetTypes = Object.keys(ClientApplicationAssetTypes);
 
+/**
+ * Represents an OAuth2 Application.
+ * @abstract
+ */
 class DeveloperPortalApplication extends Base {
   constructor(client, data) {
     super(client);