[WIP] Fix suggestion text not displaying in the comments page

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

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This section details on the original issue you should resolve

<issue_title>Suggestion text does not display</issue_title>
<issue_description>## Context

• OS: Intel Mac OS X 10_14_6
• Browser : Mozilla/5.0, Chrome/86.0.4240.198
• Etherpad version: 1.8.6
• ep_comments_page version: 0.1.51

Behavior

When adding a suggestion, proposition text does not appear.
But when clicking on "Apply", text is correctly replaced.

Steps to reproduce

Failure Logs

When opening developer tools : no errors.

Useful info

This was tested also on this public instance : https://lite1.infini.fr/p/test
</issue_description>

Comments on the Issue (you are @copilot in this section)

@JohnMcLear I probably wont get to this any time soon so you might want to see if you can dig into it a bit :)