[Feature Request] Display comments left on old commits

Hello,

First of all thanks for the great work on this extension: it really makes pull requests better in GitHub 😃

Nevertheless I have been struggling when reviewing code on GiHub since the beginning because of the use case described here: https://stackoverflow.com/q/44227100

Is there a way to make the handling of this use case better by adding a new feature in this extension?

Thanks in advance!

Start by reading the linked Stack Overflow use case and inspecting the extension's existing pull-request comment handling. No files, tests, or entry points are named in the issue, so the implementation scope must first be mapped. Done means comments left on older commits are displayed in the relevant GitHub pull-request view.

Written by the indexing model from the issue text.