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/packages/docs-ui/src/components/Npm2YarnCode/index.tsx

@@ -0,0 +1,52 @@
+import React from "react"
+import { CodeBlockMetaFields, LegacyCodeTabs } from "../.."
+import convert from "npm-to-yarn"
+
+type Npm2YarnCodeProps = {
+  npmCode: string
+} & Omit<CodeBlockMetaFields, "npm2yarn">
+
+export const Npm2YarnCode = ({ npmCode, ...rest }: Npm2YarnCodeProps) => {
+  // convert npm code
+  const yarnCode = convert(npmCode, "yarn").replaceAll(/([^\s])&&/g, "$1 &&")
+  const pnpmCode = convert(npmCode, "pnpm").replaceAll(/([^\s])&&/g, "$1 &&")
+  const lang = "bash"
+
+  const { title = "", ...codeOptions } = rest
+
+  return (
+    <LegacyCodeTabs
+      group="npm2yarn"
+      title={title}
+      tabs={[
+        {
+          label: "npm",
+          value: "npm",
+          code: {
+            source: npmCode,
+            lang,
+            ...codeOptions,
+          },
+        },
+        {
+          label: "yarn",
+          value: "yarn",
+          code: {
+            source: yarnCode,
+            lang,
+            ...codeOptions,
+          },
+        },
+        {
+          label: "pnpm",
+          value: "pnpm",
+          code: {
+            source: pnpmCode,
+            lang,
+            ...codeOptions,
+          },
+        },
+      ]}
+    />
+  )
+}