Allow user to add buy and sell trade transactions for investment accounts (#1066)

* Consolidate modal form structure into partial + helper

* Scaffold out trade transaction form

* Normalize translations

* Add buy and sell trade form with tests

* Move entryable lists to dedicated controllers

* Delegate entry group contents rendering

* More cleanup

* Extract transaction and valuation update logic from entries controller

* Delegate edit and show actions to entryables

* Trade builder

* Update paths for transaction updates

app/views/account/entries/_entry.html.erb

@@ -1,4 +1,5 @@
 <%# locals: (entry:, **opts) %>
+
 <%= turbo_frame_tag dom_id(entry) do %>
-  <%= render permitted_entryable_partial_path(entry, entry.entryable_name_short), entry: entry, **opts %>
+  <%= render partial: entry.entryable.to_partial_path, locals: { entry: entry, **opts } %>
 <% end %>