v2.0.0

• Version number moves to 2.0.0 so every site, including those running older plugin
  lineages with higher version numbers, receives updates correctly from here on. No
  functional change is implied by the jump.
• Fixed a misleading status: a rate-limited configuration call arriving moments after a
  successful one no longer replaces the "synced" status with a warning. The success and
  its timestamp are kept; the extra attempt is simply noted.
• No consent-banner design, settings field, or frontend style changes.