Bring series detail pages into alignment with session detail pages

1. Move cancel series from bottom of page to inside the edit view 2. put past sessions and session history into a collapsed-by-default section both of these patterns are implemented on the session detail page and need to be mirrored here on the series detail pages (all types)

1. Move cancel series from bottom of page to inside the edit view 2. put past sessions and session history into a collapsed-by-default section both of these patterns are implemented on the session detail page and need to be mirrored here on the series detail pages (all types)