[UXE-6402] chore: include credentials in chat service request for improved security

[HerbertJulio]

Pull Request

What is the new behavior introduced by this PR?

This pull request includes a small but important change to the chatService function in src/modules/azion-ai-chat/services/chat-service.js. The change ensures that credentials are included in the request.

• src/modules/azion-ai-chat/services/chat-service.js: Added the credentials: 'include' option to the fetch request to ensure that credentials are sent with the request.

Does this PR introduce breaking changes?

• No
• Yes

Does this PR introduce UI changes? Add a video or screenshots here.

NO

Does it have a link on Figma?

NO

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Checklist

Make sure your pull request fits the checklist below (when applicable):

• The issue title follows the format: [ISSUE_CODE] TYPE: TITLE
• Commits are tagged with the right word (feat, test, refactor, etc)
• Application responsiveness was tested to different screen sizes
• Code is formatted and linted
• Tags are added to the PR

These changes were tested on the following browsers:

• Chrome
• Edge
• Firefox
• Safari
• Brave