Kind 16767 events previously hardcoded description to undefined, so the
theme description never appeared on 'updated their theme' posts in the
feed or detail view.
Three changes:
- buildActiveThemeTags now accepts and includes a description tag, so
future kind 16767 events carry the description directly
- setActiveTheme accepts description to thread it through publishing
- ThemeContent extracts the description tag from kind 16767 events, and
for older events without one, falls back to querying the source theme
definition via the a-tag reference
Mary Kate Fain
b59eeeca81