Add importing html and save it to Article

Additionally defines a wizard logic which is partially unused yet.

lib/outlook_web/live/article_live/form_component.ex

@@ -20,8 +20,8 @@ defmodule OutlookWeb.ArticleLive.FormComponent do
         phx-change="validate"
         phx-submit="save"
       >
+        <.input field={{f, :author_id}} type="hidden" />
         <.input field={{f, :title}} type="text" label="title" />
-        <.input field={{f, :content}} type="text" label="content" />
         <.input field={{f, :url}} type="text" label="url" />
         <.input field={{f, :language}} type="text" label="language" />
         <.input field={{f, :date}} type="datetime-local" label="date" />
@@ -54,6 +54,8 @@ defmodule OutlookWeb.ArticleLive.FormComponent do
   end
 
   def handle_event("save", %{"article" => article_params}, socket) do
+    article_params = article_params
+    |> Map.put("content", socket.assigns.internal_tree)
     save_article(socket, socket.assigns.action, article_params)
   end