More little updates for Booko.

Some more small changes this arvo:

  • Changed the┬áseparator from solid to dotted, moved it around a bit, and added separators between the recent searches / your searches sections.
  • The “Last Updated” section now tells you how long ago the book was updated in relative terms.
  • The Cart has been shrunk and now has a dotted line to clearly separate it from the other content.