fix: 🐛 add aria-description to edit User detail btn to fix a11y bug (#3113)

A new param @ariaDescription that was added to addons/rose edit-toggle component 
which now allows us to define the value of aria-description per a11y requirements.
With this change, the User detail edit form button now includes a value for aria-description.

✅ Closes: FE-112

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Co-authored-by: Zhihe Li <zhihe.li@hashicorp.com>

ui/admin/app/components/form/user/index.hbs

@@ -53,6 +53,7 @@
   {{#if (can 'save model' @model)}}
     <form.actions
       @enableEditText={{t 'actions.edit-form'}}
+      @ariaDescriptionEdit={{t 'resources.user.title'}}
       @submitText={{t 'actions.save'}}
       @cancelText={{t 'actions.cancel'}}
     />