Reduces the bundle size of attachments preview.

[deepakjosp]

Fixes #1124

Description

• Lazy loads the Preview component so that the initial bundle size is low.
• Demo - https://deepak-jose.neetorecord.com/recordings/f0de9964-57c6-4af1-a568-a18e728ecf99
• Review app integrated with these changes - https://neeto-kb-web-k9le-pr-6304.neetodeployapp.com/

Checklist

• [ ] ~I have made corresponding changes to the documentation.~
• [ ] ~I have updated the types definition of modified exports.~
• [x] I have verified the functionality in some of the neeto web-apps.
• [x] I have added the necessary label (patch/minor/major - If package publish is required).

Reviewers

[deepakjosp]

@AbhayVAshokan _a please review.

[deepakjosp]

@AbhayVAshokan _a please review.

[AbhayVAshokan]

Nice work 👌