docs: updates following authentication flow changes (#8706)

* docs: updates following authentication flow changes

* generate sidebar

* added open api specs

* fix up OAS

* changes to existing pages

* change sidebar items

* update marketplace recipe

www/utils/generated/oas-output/base/admin.oas.base.yaml

@@ -6,6 +6,9 @@ info:
     name: MIT
     url: https://github.com/medusajs/medusa/blob/master/LICENSE
 tags:
+  - name: Auth
+    description: >
+      Auth API routes allow you to manage an admin user's authentication.
   - name: Api Keys
   - name: Campaigns
   - name: Claims

www/utils/generated/oas-output/base/store.oas.base.yaml

@@ -6,6 +6,9 @@ info:
     name: MIT
     url: https://github.com/medusajs/medusa/blob/master/LICENSE
 tags:
+  - name: Auth
+    description: >
+      Auth API routes allow you to manage a customer's authentication.
   - name: Carts
     description: >
       A cart is a virtual shopping bag that customers can use to add items they