Reorganize comments/emails in 1 view without other activities

[naga-mantha]

Is your feature request related to a problem? Please describe.

Currently, the Activity tab displays emails, comments, and other updates (like status changes) all in a single view. This can be overwhelming, as agents often have to scroll through a large volume of information just to locate a specific reply. Although there are separate tabs for emails and comments, they are based on different tables, which disrupts the natural chronological flow of the conversation.

Additionally, when users reply to an email, the entire email thread—including all previous replies—is saved again in the Activity. This causes the activity log to become unnecessarily lengthy and harder to navigate.

Describe the solution you'd like

A separate tab which displays emails and comments in descending order (New at top, old at bottom - See also #2206 ). When the email comes in, it should keep only the reply and not the entire thread.

Describe the alternatives you've considered

No response

Additional context

No response