docs: update docusaurus to v3 (#5625)

* update dependencies

* update onboarding mdx

* fixes for mdx issues

* fixes for mdx compatibility

* resolve mdx errors

* fixes in reference

* fix check errors

* revert change in vale action

* fix node version in action

* fix summary in markdown

www/apps/docs/content/references/services/classes/Note.mdx

@@ -12,7 +12,7 @@ A Note is an element that can be used in association with different resources to
 
 ### constructor
 
-**new Note**()
+`**new Note**()`
 
 A Note is an element that can be used in association with different resources to allow admin users to describe additional information. For example, they can be used to add additional information about orders.
 
@@ -21,7 +21,7 @@ A Note is an element that can be used in association with different resources to
 <ParameterTypes parameters={[
   {
     "name": "author",
-    "type": "[`User`](User.mdx)",
+    "type": "[User](User.mdx)",
     "description": "The details of the user that created the note.",
     "optional": false,
     "defaultValue": "",
@@ -66,7 +66,7 @@ A Note is an element that can be used in association with different resources to
   },
   {
     "name": "metadata",
-    "type": "Record<`string`, `unknown`\\>",
+    "type": "`Record<string, unknown>`",
     "description": "An optional key-value map with additional details",
     "optional": false,
     "defaultValue": "",
@@ -115,7 +115,7 @@ A Note is an element that can be used in association with different resources to
 
 ### beforeInsert
 
-`Private` **beforeInsert**(): `void`
+`Private **beforeInsert**(): void`
 
 #### Returns