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/managed-groups/managed-group/header/index.hbs

@@ -5,7 +5,7 @@
 
 <Hds::Text::Display @tag='h2' @size='400' @weight='bold' class='header-spacing'>
   {{t 'resources.managed-group.title'}}
-  <DocLink @doc='managed-groups' @iconSize='large' />
+  <DocLink @doc='managed-groups' />
 </Hds::Text::Display>
 <p>{{t 'resources.managed-group.description'}}</p>
 <Hds::Copy::Snippet @textToCopy={{@model.id}} @color='secondary' />