No HTML Formatting while email compose

**Describe the bug**

When composing an email using AI in the text editor, the generated content lacks HTML formatting, resulting in plain text without line breaks or styling. To improve the email's readability and presentation, the composed message should include proper HTML structure, so recipients see a well-formatted, presentable email.

**To Reproduce**

1. Open the compose mail drawer.
2. Generate email content using the AI bot.
3. Send the email to any recipient.
4. View the email as the recipient and note that the formatting is missing.

**Expected behavior**

The email body should be properly formatted with HTML, ensuring that generated or manually typed content in the compose editor appears structured and visually appealing for the recipient.