Fix update channel module (#5791)

* Fix getChats (#5779)

* Fix: getChats -> getChatModel -> GroupMetadata and NewsletterMetadata

* Fix module change

* fix: change wrong update module of channel

* fix: correct reference to pupPage in deleteChannel method

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Co-authored-by: BenyFilho <168232825+BenyFilho@users.noreply.github.com>
Co-authored-by: Rajeh Taher <rajeh@reforward.dev>

src/Client.js

@@ -1996,7 +1996,7 @@ class Client extends EventEmitter {
      * @returns {Promise<boolean>} Returns true if the operation completed successfully, false otherwise
      */
     async deleteChannel(channelId) {
-        return await this.client.pupPage.evaluate(async (channelId) => {
+        return await this.pupPage.evaluate(async (channelId) => {
             const channel = await window.WWebJS.getChat(channelId, { getAsModel: false });
             if (!channel) return false;
             try {