docs: Add missing @extends (#9028)

src/structures/DirectoryChannel.js

@@ -3,7 +3,8 @@
 const { Channel } = require('./Channel');
 
 /**
- * Represents a channel that displays a directory of guilds
+ * Represents a channel that displays a directory of guilds.
+ * @extends {Channel}
  */
 class DirectoryChannel extends Channel {
   _patch(data) {

src/structures/Integration.js

@@ -19,7 +19,8 @@ const IntegrationApplication = require('./IntegrationApplication');
  */
 
 /**
- *  Represents a guild integration.
+ * Represents a guild integration.
+ * @extends {Base}
  */
 class Integration extends Base {
   constructor(client, data, guild) {

src/structures/VoiceState.js

@@ -5,6 +5,7 @@ const { Error, TypeError } = require('../errors');
 
 /**
  * Represents the voice state for a Guild Member.
+ * @extends {Base}
  */
 class VoiceState extends Base {
   constructor(guild, data) {

src/structures/Widget.js

@@ -6,6 +6,7 @@ const WidgetMember = require('./WidgetMember');
 
 /**
  * Represents a Widget.
+ * @extends {Base}
  */
 class Widget extends Base {
   constructor(client, data) {

src/structures/WidgetMember.js

@@ -4,6 +4,7 @@ const Base = require('./Base');
 
 /**
  * Represents a WidgetMember.
+ * @extends {Base}
  */
 class WidgetMember extends Base {
   /**

src/structures/interfaces/Application.js

@@ -11,6 +11,7 @@ let deprecationEmittedForFetchAssets = false;
 
 /**
  * Represents an OAuth2 Application.
+ * @extends {Base}
  * @abstract
  */
 class Application extends Base {

src/structures/interfaces/Collector.js

@@ -25,6 +25,7 @@ const Util = require('../../util/Util');
 
 /**
  * Abstract class for defining a new Collector.
+ * @extends {EventEmitter}
  * @abstract
  */
 class Collector extends EventEmitter {