Make sure tracked post types registered using the bp_blogs_record_post_post_types filter will have the same activity tracking arguments than the post post type.

Since 2.2.0, and the introduction of the custom post types activities feature, when a post type was registered using the bp_blogs_record_post_post_types filter it had specific tracking arguments. It introduced some inconsistency as soon as the filter bp_blogs_record_comment_post_types was also used to track comments about this post type and when the activity/comment syncing feature was on.

From now on, post types registering to Site tracking using the filter bp_blogs_record_post_post_types will automatically get the same tracking arguments than the post post type to fix this inconsistency.

Props shanebp, boonebgorges

Fixes #6306