feat: add localization for products and taxons

[fpdrozd]

This PR adds current locale to Spree api calls params for getting the products and taxons. The locale is being taken from the cookie set by i18n nuxt plugin.

Spree SDK PR: spree/spree-api-v2-js-sdk#364

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.