Members only phrasing & styling edits, more parts

Members only phrasing & styling edits, more parts

Members only template changed to use member db terms through our
new filters. Several buttons for the members only section restyled
to suit theme. Share button removed. Sunrise now default for any
user who has access to the member admin but who is not an
administrator. Split theme into more parts as per our standards to
avoid needless code duplication.