Currently, the SiteTreeLinkTracking_Parser only checks the page's content for anchors.
As a result, any anchors that have been added or modified by the updateAnchorsOnPage extension in the getAnchorsOnPage method are marked ss-broken.
This change updates SiteTreeLinkTracking_Parser to get the anchors from the getAnchorsOnPage function on SiteTree. This will allow for more consistent RegEx matching and allow the updateAnchorsOnPage extension to be used when checking for broken links.
* WIP Implement polymorphic sitetree link tracking
* Update unit tests
Merge SiteTreeTrackedPage into SiteTree directly
* Fix bugs and issues
* Fix support for file link tracking
* Add missing use
* Add back deprecated extension
* Remove obsolete belongs_many_many
* Update deprecations
* BUG Ensure non-SiteTree records support link tracking
* Safer changed check
* Shift file tracking test to assets module
* Better check for live stage on versioning
* Deprecate method
* Cleanup virtualpage
* Clear records on delete
* Ensure upgrade task occurs on draft
* fix linting
