refactor: 💡 convert p tags to Hds::Text component (#2800)

* refactor: 💡 convert p tags to Hds::Text component

✅ Closes: https://hashicorp.atlassian.net/browse/ICU-16865

* style: 💄 remove comment

✅ Closes: https://hashicorp.atlassian.net/browse/ICU-16865

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

@@ -12,5 +12,7 @@
   {{/if}}
   <DocLink @doc='auth-method' />
 </Hds::Text::Display>
-<p>{{t 'resources.auth-method.description'}}</p>
+<Hds::Text::Body @tag='p' @size='300' class='p'>{{t
+    'resources.auth-method.description'
+  }}</Hds::Text::Body>
 <Hds::Copy::Snippet @textToCopy={{@model.id}} @color='secondary' />