docs: add Sanity integration guide (#10152)

* docs: add integrate to Sanity guide

* address PR feedback

* added more screenshots

* edit introduction

* added meta images + changes

www/apps/resources/app/contribution-guidelines/admin-translations/page.mdx

@@ -90,8 +90,8 @@ export const languages: Language[] = [
     code: "da",
     display_name: "Danish",
     ltr: true,
-    date_locale: da
-  }
+    date_locale: da,
+  },
 ]
 ```