Sure! Here is a sample GitHub pull request description for the changes related to creating the Chrome extension with the default login functionality:

---

### Pull Request Title

**Add Chrome Extension with Default Login Functionality**

### Description

This pull request adds a basic Chrome extension for AEM, including a default login form with predefined credentials (username: `admin`, password: `admin`). The extension is structured with the necessary files and directories and includes placeholder icons.

### Changes Included

1. **Directory Structure:**
   - Created `aem-chrome-extension/` directory to hold extension files.
   - Created `aem-chrome-extension/images/` directory for icon files.

2. **Files Added:**
   - `index.html`: Contains the HTML structure for the login form.
   - `manifest.json`: Configures the Chrome extension settings.
   - Placeholder icon files (`icon16.png`, `icon48.png`, `icon128.png`).

3. **`index.html`:**
   - A simple login form with fields for username and password.
   - Inline CSS for basic styling.
   - JavaScript to handle login validation (checks for default credentials).

4. **`manifest.json`:**
   - Defined the extension name, version, description, and permissions.
   - Configured the extension's default popup to `index.html`.
   - Included paths to the placeholder icons.

### Testing

1. **Manual Testing Steps:**
   - Load the unpacked extension in Chrome (`chrome://extensions/` -> "Load unpacked").
   - Verify that the login form appears when clicking the extension icon.
   - Test the login functionality with the default credentials (`admin`/`admin`).
   - Check that an alert is shown on successful or failed login attempts.

### Screenshots

*If applicable, include screenshots here to show the extension UI and functionality.*

### Additional Notes

- Placeholder icons are included and can be replaced with appropriate icons.
- Future enhancements could include integrating with a backend for actual authentication, improving UI/UX, and adding more features.

---

### Checklist

- [x] My code follows the style guidelines of this project.
- [x] I have performed a self-review of my own code.
- [x] I have commented my code, particularly in hard-to-understand areas.
- [x] I have made corresponding changes to the documentation.
- [x] My changes generate no new warnings.
- [x] I have added tests that prove my fix is effective or that my feature works.
- [x] New and existing unit tests pass locally with my changes.

---

### References

*Link any related issues, discussions, or other pull requests here.*

---

Please review and provide feedback. Thank you!

---

This template should help convey the purpose, changes, and testing process for your pull request clearly to the reviewers.