docs: update auth docs + add new storefront guides (#9020)

* docs: update auth docs + add new storefront guides

* lint content

* fix vale error

* add callback response schema

* Update www/apps/resources/app/commerce-modules/auth/auth-providers/github/page.mdx

Co-authored-by: Stevche Radevski <sradevski@live.com>

* Update www/apps/resources/app/commerce-modules/auth/auth-providers/github/page.mdx

Co-authored-by: Stevche Radevski <sradevski@live.com>

* Update www/apps/resources/app/commerce-modules/auth/authentication-route/page.mdx

Co-authored-by: Stevche Radevski <sradevski@live.com>

* address PR comments

* replace google -> github

* better explanation for refresh token

---------

Co-authored-by: Stevche Radevski <sradevski@live.com>

www/apps/resources/app/commerce-modules/auth/auth-providers/emailpass/page.mdx

@@ -8,8 +8,6 @@ export const metadata = {
 
 In this document, you’ll learn about the Emailpass auth module provider and how to install and use it in the Auth Module.
 
-## Features
-
 Using the Emailpass auth module provider, you allow users to register and login with an email and password.
 
 ---
@@ -31,6 +29,7 @@ const modules = {
     resolve: "@medusajs/auth",
     options: {
       providers: [
+        // other providers...
         {
           resolve: "@medusajs/auth-emailpass",
           id: "emailpass",