Add creating and basic editing of translation

lib/outlook_web/live/translation_live/new.ex

@@ -0,0 +1,38 @@
+defmodule OutlookWeb.TranslationLive.New do
+  use OutlookWeb, :live_view
+
+  alias Outlook.Articles
+  alias Outlook.Translations.{Translation,Basic}
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.live_component
+      module={OutlookWeb.TranslationLive.FormComponent}
+      id={:new}
+      title="New Translation"
+      action={@live_action}
+      translation={@translation}
+      translation_content={@translation_content}
+      navigate={~p"/translations"}
+    />
+    """
+  end
+
+  @impl true
+  def mount(%{"article_id" => article_id} = _params, _session, socket) do
+    socket = socket
+      |> assign_new(:translation, fn ->
+        %Translation{
+          article_id: article_id,
+          article: get_article(article_id)
+        }
+        end)
+    {:ok, assign_new(socket, :translation_content, fn ->
+        Basic.internal_tree_to_tunit_map(socket.assigns.translation.article.content) end)}
+  end
+
+  defp get_article(article_id) do
+    Articles.get_article!(article_id)
+  end
+end