Vendure provider (#223)

* Minimal list/detail views working with Vendure

* Implement useCart/useAddItem

* Implement useUpdateItem & useRemoveItem

* Implement useSearch

* Add operations codegen, tidy up

* Dummy checkout page

* Implement auth/customer hooks

* Use env var for Shop API url

* Add some documentation

* Improve error handling

* Optimize preview image size

* Fix accidental change

* Update Vendure provider to latest changes

* Vendure provider: split out gql operations, remove unused files

* Update Vendure provider readme

* Add local next.config to Vendure provider, update docs

* Update to use demo server

* Fix build errors

* Use proxy for vendure api

* Simplify instructions in Vendure readme

* Refactor Vendure checkout api handler

* Improve image quality

framework/vendure/common/get-all-pages.ts

@@ -0,0 +1,35 @@
+import { getConfig, VendureConfig } from '../api'
+
+export type Page = any
+
+export type GetAllPagesResult<
+  T extends { pages: any[] } = { pages: Page[] }
+> = T
+
+async function getAllPages(opts?: {
+  config?: VendureConfig
+  preview?: boolean
+}): Promise<GetAllPagesResult>
+
+async function getAllPages<T extends { pages: any[] }>(opts: {
+  url: string
+  config?: VendureConfig
+  preview?: boolean
+}): Promise<GetAllPagesResult<T>>
+
+async function getAllPages({
+  config,
+  preview,
+}: {
+  url?: string
+  config?: VendureConfig
+  preview?: boolean
+} = {}): Promise<GetAllPagesResult> {
+  config = getConfig(config)
+
+  return {
+    pages: [],
+  }
+}
+
+export default getAllPages