Bake progress that sticks, plus this changelog

Some quality-of-life polish and a couple of new pages.

• IMPROVED

  Bake mode remembers where you left off

  Check items off as you bake and your progress is saved to the batch - refresh the page, switch from your phone to the kitchen tablet, and the checkmarks are still there.

• NEW

  This changelog

  A public page for what's new, with an email list you can subscribe to so updates come to you instead of you having to check.

• NEW

  A landing page

  Added a basic landing page for Nextbatch, so there's a real front door to the product.

- Matthew