Replace Rose::Icon with HDS::Icon (#2762)

* refactor: 💡 rose icons with hds icons

* fix: 🐛 remove child selector for h2

* fix: 🐛 removed unwanted changes

* fix: 🐛 remove unncessary change

* refactor: 💡 rose icon for rose components

* fix: 🐛 default size for doc-link, updated tests, removed TODO

* fix: 🐛 update doc-link test

ui/admin/app/components/auth-methods/auth-method/header/index.hbs

@@ -10,7 +10,7 @@
     <Hds::Badge @text={{t 'states.primary'}} @color='success' />
     &nbsp;
   {{/if}}
-  <DocLink @doc='auth-method' @iconSize='large' />
+  <DocLink @doc='auth-method' />
 </Hds::Text::Display>
 <p>{{t 'resources.auth-method.description'}}</p>
 <Hds::Copy::Snippet @textToCopy={{@model.id}} @color='secondary' />