Add HtmlDocComponent to render the InternalTree

Very basic but promising.

lib/outlook_web/live/translation_live/form_component.ex

@@ -38,10 +38,10 @@ defmodule OutlookWeb.TranslationLive.FormComponent do
         <.tunit_editor current_tunit={@current_tunit} target={@myself} />
     </div>
       <div class="article">
-        <%= InternalTree.render_html_preview(@translation.article.content, @myself) |> raw %>
         <.button phx-disable-with="Translating..." phx-click="translate-deepl" phx-target={@myself}
           data-confirm-not="Are you sure? All previously translated text will be lost.">Translate with Deepl</.button>
         <progress :if={@deepl_progress} max="100" value={@deepl_progress} />
+        <.render_doc tree={@translation.article.content} />
       </div>
     </div>
     """