fix: minor forums cleanup (#9033)

* docs(GuildChannelResolvable): remove extra `ForumChannel`

* docs: replace `GuildForumThreadChannel`

* docs: `Channel` correct reference

* refactor: move `threadName` to the right method

src/structures/ThreadChannel.js

@@ -468,7 +468,7 @@ class ThreadChannel extends Channel {
    * Set the applied tags for this channel (only applicable to forum threads)
    * @param {Snowflake[]} appliedTags The tags to set for this channel
    * @param {string} [reason] Reason for changing the thread's applied tags
-   * @returns {Promise<GuildForumThreadChannel>}
+   * @returns {Promise<ThreadChannel>}
    */
   setAppliedTags(appliedTags, reason) {
     return this.edit({ appliedTags }, reason);

src/structures/Webhook.js

@@ -116,6 +116,7 @@ class Webhook {
    * @property {string} [avatarURL] Avatar URL override for the message
    * @property {Snowflake} [threadId] The id of the thread in the channel to send to.
    * <info>For interaction webhooks, this property is ignored</info>
+   * @property {string} [threadName] Name of the thread to create (only available if webhook is in a forum channel)
    * @property {MessageFlags} [flags] Which flags to set for the message. Only `SUPPRESS_EMBEDS` can be set.
    */
 
@@ -131,7 +132,6 @@ class Webhook {
    * Action rows containing interactive components for the message (buttons, select menus)
    * @property {Snowflake} [threadId] The id of the thread this message belongs to
    * <info>For interaction webhooks, this property is ignored</info>
-   * @property {string} [threadName] Name of the thread to create (only available if webhook is in a forum channel)
    */
 
   /**