this creates a kind 3 event that includes a list of profiles that
the user is following.
the feed is still the public global feed and individual feed with
only events from followed pubkeys will be added in the next commit.
also:
- updated following and unfollwing wording
- added proper primary and secondary button styles.
- added following count in profile header
- added contact-list changes events
- added new raw event detail view to visulaize event metadata and
raw content
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