docs: prep for v2 documentation (#6710)

This PR includes documentation that preps for v2 docs (but doesn't introduce new docs).

_Note: The number of file changes in the PR is due to find-and-replace within the `references` which is unavoidable. Let me know if I should move it to another PR._

## Changes

- Change Medusa version in base OAS used for v2.
- Fix to docblock generator related to not catching all path parameters.
- Added typedoc plugin that generates ER Diagrams, which will be used specifically for data model references in commerce modules.
- Changed OAS tool to output references in `www/apps/api-reference/specs-v2` directory when the `--v2` option is used.
- Added a version switcher to the API reference to switch between V1 and V2. This switcher is enabled by an environment variable, so it won't be visible/usable at the moment.
- Upgraded docusaurus to v3.0.1
- Added new Vale rules to ensure correct spelling of Medusa Admin and module names.
- Added new components to the `docs-ui` package that will be used in future documentation changes.

www/apps/api-reference/providers/index.tsx

@@ -1,18 +1,17 @@
 "use client"
 
 import {
-  AiAssistantProvider,
   AnalyticsProvider,
   ColorModeProvider,
   MobileProvider,
   ModalProvider,
-  NavbarProvider,
   PageLoadingProvider,
   ScrollControllerProvider,
 } from "docs-ui"
 import BaseSpecsProvider from "./base-specs"
 import SidebarProvider from "./sidebar"
 import SearchProvider from "./search"
+import VersionProvider from "./version"
 
 type ProvidersProps = {
   children?: React.ReactNode
@@ -27,11 +26,11 @@ const Providers = ({ children }: ProvidersProps) => {
             <BaseSpecsProvider>
               <ScrollControllerProvider scrollableSelector="#main">
                 <SidebarProvider>
-                  <NavbarProvider>
-                    <SearchProvider>
-                      <MobileProvider>{children}</MobileProvider>
-                    </SearchProvider>
-                  </NavbarProvider>
+                  <SearchProvider>
+                    <MobileProvider>
+                      <VersionProvider>{children}</VersionProvider>
+                    </MobileProvider>
+                  </SearchProvider>
                 </SidebarProvider>
               </ScrollControllerProvider>
             </BaseSpecsProvider>