Context Navigation

Changes between Initial Version and Version 1 of Ticket #64845

initial	v1
14	14	* Every site that has only one contributor+ user
15	15	* Every site that does not typically have multiple authors logged in at the same time
16		* Every site that is `! is_multi_author()` (~~no sites with posts by more than one author~~) -- note that function probably could use a `$post_type` argument to make this more contextually aware based on the post being edited in this case
	16	* Every site that is `! is_multi_author()` (sites with no posts by more than one author total) -- note that function probably could use a `$post_type` argument to make this more contextually aware based on the post being edited in this case
17	17
18	18	Surely we need to reign this in because the amount of requests (1 every second) is wasteful for most sites since WordPress is used by a huge amount of sites on the web.