The basic idea of this is to allow you to use the standard
nip50 query interface to search for profiles using our profile
index.
query: {"search":"jb55", "kinds":[0]}
will result in a profile_search query plan that searches kind0 profiles
for the corresponding `name` or `display_name`.
Signed-off-by: William Casarin <jb55@jb55.com>
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