Upcoming interface rewrite and new Limited Run integration

We're currently in the early stages of rewriting the interface to support our most requested features, like sorting, filtering, and so on. Thanks for your patience!

• Limited Run: You can now add a Limited Run sales channel

• Shopify: Migrated to new Shopify API inventory endpoints for better syncing performance

• Shopify: Fixed how we handle inactive and legacy locations

• Shopify: Added support for new integration requirements

• Walmart: Corrected an issue that prevented importing more than 999 listings

• Updated our backend framework to the newest version to support the upcoming interface rewrite

• Some other internal adjustments and fixes to keep Trunk working like a charm!