Package version 1.2.0

[jbrinley]

Added

• Product prices will update dynamically to reflect the price of the selected variant.
• Reintroduced the ability to set API credentials without using the connector app.
• Added logs for import errors, viewable through the plugin diagnostics section
  on the plugin settings screen.
• Added support for links directly to product variants.
• The import process will continue to run via ajax requests while an admin is
  on the plugin settings screen. This can speed up import processing on sites
  that depend on WordPress cron jobs for the import.

Changed

• Refactored Gutenberg block registration to re-use code and allow more
  configuration when registering the blocks in PHP.
• Font sizes use relative units instead of pixels.
• Increased quantity field width to accommodate three digits.

Fixed

• Fixed compatibility with newer (4.4+) versions of Gutenberg.
• Updated the $_COOKIE superglobal immediately on setting the cart cookie.
• Fixed a PHP error when the BigCommerce tax class API returns an invalid value.
• Added decimal precision to price sorting queries, fixing sorting for products
  that round to the same integer value.
• Improved accessibility and keyboard navigation on the plugin settings screen.