feat: get pinned messages

[alechkos]

Table of Contents

- Description

- Usage Example

- I Want to Test this PR

- I Got an Error While Testing This PR ❌

- How Has the PR Been Tested (latest test on 04.05.2024)

• The environment the PR was tested on

- Types of Changes

---

Description

The PR adds Client.getPinnedMessages and Chat.getPinnedMessages methods to retrieve all pinned messages from a chat or a group by providing the chat ID.

Methods return an array of Message instances, or an empty array if there are no pinned messages in a chat/group.

---

Usage Example

// client initialization...

client.on('ready', async () => {
    const chatId = 'your_chat_id@c.us';

    let pinnedMsg = await client.getPinnedMessages(chatId);
    console.log(pinnedMsg);

    // OR
    const chat = await client.getChatById(chatId);
    pinnedMsg = await chat.getPinnedMessages();
    console.log(pinnedMsg);
});

---

To test this PR by yourself you should do two steps:

1. Install the PR by running one of the following commands:

• NPM

npm install github:alechkos/whatsapp-web.js#get-pinned-msg

• YARN

yarn add github:alechkos/whatsapp-web.js#get-pinned-msg

2. Lock your WWeb version on 2.2412.54:

const wwebVersion = '2.2412.54';

const client = new Client({
    authStrategy: new LocalAuth(), // your authstrategy here
    puppeteer: {
        // puppeteer args here
    },
    // locking the wweb version
    webVersionCache: {
        type: 'remote',
        remotePath: `https://raw.githubusercontent.com/wppconnect-team/wa-version/main/html/${wwebVersion}.html`,
    },
});

---

If you encounter any errors while testing this PR, please provide in a comment:

1. The code you've used without any sensitive information (use syntax highlighting for more readability)
2. The error you got
3. The library version
4. The WWeb version: console.log(await client.getWWebVersion());
5. The browser (Chrome/Chromium)

Important

You have to reapply the PR each time it is changed (new commits were pushed since your last application)

---

How Has The PR Been Tested (latest test on 04.05.2024)

Tested with a code provided in usage example.

Tested On:

Types of accounts:

• Personal
• Buisness

Environment:

• Android 10:
  • WhatsApp: latest
  • WA Business: latest
• Windows 10:
  • WWebJS: v1.23.1-alpha.6
  • WWeb: v2.2412.54
  • Puppeteer: v18.2.1
  • Node: v18.17.1
  • Chrome: latest

---

Types of Changes

• Dependency change
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix/feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project
• I have updated the usage example accordingly (example.js)
• I have updated the documentation accordingly (index.d.ts)