Fix Byline Manager Profiles in Jetpack Stats

[anubisthejackle]

Description

Currently when Byline Manager profiles make it into the Jetpack stats pages, they are appearing as the query parameter versions of themselves (e.g. https://example.com/?profile=john-doe). We should make it so these values are being tracked as their author archive format (e.g. https://example.com/author/john-doe).

Use Case

When a user sees the query parameter format, they may have no idea what they're looking at. Further, it exposes a URL that shouldn't be visible to end users. Instead, we should mimic the core functionality in Jetpack stats, just as we do elsewhere.