JCMA should retain Favorites on Dashboards that are migrated

Issue Summary

It is possible to flag commonly visited dashboards as a favourite. These settings are not retained after migrating dashboards using JCMA (currently using a dark feature).

Steps to Reproduce

Server

1. Create a dashboard
2. Migrate the dashboard using the dark feature

   Cloud

3. Open the dashboard page on Jira cloud

Expected Results

Favorite dashboard settings are retained

Actual Results

No dashboards are marked as favorites

Workaround

There is no workaround.
There is no REST API endpoint available to flag dashboards as favourites.
https://developer.atlassian.com/cloud/jira/platform/rest/v3/api-group-dashboards/#api-group-dashboards