docs: generate sitemaps + change search filters (#8957)

- Generate sitemaps for `book` and `resources` projects (in attempt to resolve some pages not being picked up by the crawler)
- Change the v2 search filters

> Note: will require changes to algolia's crawler + a recrawl once merged

www/packages/build-scripts/src/index.ts

@@ -1,5 +1,6 @@
 export * from "./generate-edited-dates.js"
 export * from "./generate-sidebar.js"
+export * from "./retrieve-mdx-pages.js"
 
 export * from "./utils/find-metadata-title.js"
 export * from "./utils/find-page-heading.js"

www/packages/build-scripts/src/retrieve-mdx-pages.ts

@@ -0,0 +1,42 @@
+import { readdirSync } from "fs"
+import path from "path"
+import { getFileSlugSyncUtil } from "remark-rehype-plugins"
+
+type Options = {
+  basePath: string
+}
+
+export function retrieveMdxPages({ basePath }: Options): string[] {
+  function retrieveMdxFilesInPath(dir: string): string[] {
+    const urls = []
+    const files = readdirSync(dir, {
+      withFileTypes: true,
+    })
+
+    for (const file of files) {
+      const filePath = path.join(dir, file.name)
+      if (file.isDirectory()) {
+        if (!file.name.startsWith("_")) {
+          urls.push(...retrieveMdxFilesInPath(filePath))
+        }
+        continue
+      } else if (file.name !== "page.mdx") {
+        continue
+      }
+
+      const slug = getFileSlugSyncUtil(filePath)
+
+      urls.push(
+        slug ||
+          filePath
+            .replace(basePath, "")
+            .replace(file.name, "")
+            .replace(/\/$/, "")
+      )
+    }
+
+    return urls
+  }
+
+  return retrieveMdxFilesInPath(basePath)
+}

www/packages/build-scripts/src/utils/get-core-flows-ref-sidebar-children.ts

@@ -1,6 +1,6 @@
-import { getSidebarItemLink, ItemsToAdd } from "build-scripts"
 import { existsSync, readdirSync } from "fs"
 import path from "path"
+import { getSidebarItemLink, ItemsToAdd } from "../index.js"
 
 export default async function getCoreFlowsRefSidebarChildren(): Promise<
   ItemsToAdd[]