chore: reorganize docs apps (#7228)

* reorganize docs apps

* add README

* fix directory

* add condition for old docs

www/apps/resources/references/modules/tax_provider/page.mdx

@@ -0,0 +1,12 @@
+import { TypeList } from "docs-ui"
+
+# tax-provider
+
+## Interfaces
+
+- [ITaxProvider](../../tax_provider/interfaces/tax_provider.ITaxProvider/page.mdx)
+
+## Type Aliases
+
+- [ShippingTaxCalculationLine](../../tax_provider/types/tax_provider.ShippingTaxCalculationLine/page.mdx)
+- [ItemTaxCalculationLine](../../tax_provider/types/tax_provider.ItemTaxCalculationLine/page.mdx)