Product listing: Add support for custom 'vendor' links#60

Currently, vendor links default to vendor pages like “/collections/vendors?q=Vendor-Name”. It would be nice if there were an option to select a collection page instead of the auto-generated vendor pages. I’m not sure how that would look in the theme settings, but it’s a request that I’ve seen at least 3 separate times in the last 2 weeks.

Or an ability to customize the actual auto-generated vendor page. This is a big issue I’m having rn.

Unfortunately Shopify doesn’t have a way to customize a query-specific template, but I’ll restructure this suggestion a bit as we could look to using metafields for that change in link direction.