docs: support multiple sidebars in a project (#11768)

* changed to new sidebar across projects except resources

* finalize multi sidebar support

* clean up

* remove redundant property

* small changes

* fixes

* generate

* fix error

* fix initial open

www/apps/api-reference/providers/page-title.tsx

@@ -3,7 +3,7 @@
 import { createContext, useEffect } from "react"
 import { useSidebar } from "docs-ui"
 import { useArea } from "./area"
-import { SidebarItemLink } from "types"
+import { Sidebar } from "types"
 
 const PageTitleContext = createContext(null)
 
@@ -27,7 +27,7 @@ const PageTitleProvider = ({ children }: PageTitleProviderProps) => {
         // find the child that matches the active path
         const item = activeItem?.children?.find(
           (i) => i.type === "link" && i.path === activePath
-        ) as SidebarItemLink
+        ) as Sidebar.SidebarItemLink
         if (item) {
           document.title = `${item.title} - ${titleSuffix}`
         }