Improve when Categories and Post Formats are synced.

[aerych]

Currently we're syncing post formats and categories whenever we sync a blog (like on the site detail screen). This is a wasteful operation if the user isn't interested in things like their stats, or comments and not posts and pages.

Let's try syncing on demand, or at least moving the sync to a more relevant place. Perhaps time gate the sync so its not triggered repeatedly in a short period of time.

[dangermattic]

Thanks for reporting! 👍

[jkmassel]

We're doing this as part of @crazytonyli's work on custom post types. Closing.