[gnome-todo] project: Include more headers

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit d96519d85ce311d4f8c3b39db847adaba35f136f
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Sep 25 16:17:23 2020 -0300

    project: Include more headers

 src/gnome-todo.h | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/gnome-todo.h b/src/gnome-todo.h
index 7439200..bd3b7b3 100644
--- a/src/gnome-todo.h
+++ b/src/gnome-todo.h
@@ -26,6 +26,7 @@
 #include "gtd-activatable.h"
 #include "gtd-bin-layout.h"
 #include "gtd-easing.h"
+#include "gtd-keyframe-transition.h"
 #include "gtd-list-model-filter.h"
 #include "gtd-list-model-sort.h"
 #include "gtd-list-store.h"
@@ -37,12 +38,14 @@
 #include "gtd-omni-area.h"
 #include "gtd-omni-area-addin.h"
 #include "gtd-panel.h"
+#include "gtd-property-transition.h"
 #include "gtd-provider.h"
 #include "gtd-provider-popover.h"
 #include "gtd-star-widget.h"
 #include "gtd-task.h"
 #include "gtd-task-list.h"
 #include "gtd-task-list-view.h"
+#include "gtd-timeline.h"
 #include "gtd-transition.h"
 #include "gtd-types.h"
 #include "gtd-utils.h"