[gnome-builder/wip/gtk4-port: 56/1774] update TODO

[Christian Hergert <chergert src gnome org>]

commit 4090574d9dd7bf37c5f82ac188bcf70b6d22adf5
Author: Christian Hergert <chergert redhat com>
Date:   Fri Sep 24 14:07:25 2021 -0700

    update TODO

 TODO-GTK-4.md | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/TODO-GTK-4.md b/TODO-GTK-4.md
index 5f4d8759c..66486daee 100644
--- a/TODO-GTK-4.md
+++ b/TODO-GTK-4.md
@@ -10,3 +10,10 @@ This document is meant to help keep track of things that we will need to come ba
 ## IdeRunManager
 
  * We don't have a short manager for GTK 4 yet. We will want an accessory object for IdeApplication or 
similar. Alternatively, the workspace should monitor the IdeRunManager for changes and add/remove shortcuts.
+
+## IdeSurface
+
+ * We should rename this to IdeWorkspaceContent as it fits better with the `content` metaphor 
AdwApplicationWindow.
+ * Alternatively, we can probably just drop IdeSurface altogether. Instead, project properties could either 
be shown in a page or with a new dialog like we do for preferences (or a workspace window so it gets access 
to IdeContext).
+
+