[gnome-builder/wip/gtk4-port] libide/gtk: add missing header

[Christian Hergert <chergert src gnome org>]

commit 2a0fd5a86360de45ba01bc8049e68102b7f2a675
Author: Christian Hergert <chergert redhat com>
Date:   Mon Mar 28 16:05:13 2022 -0700

    libide/gtk: add missing header

 src/libide/gtk/libide-gtk.h | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/libide/gtk/libide-gtk.h b/src/libide/gtk/libide-gtk.h
index 44921651a..f61b96c1c 100644
--- a/src/libide/gtk/libide-gtk.h
+++ b/src/libide/gtk/libide-gtk.h
@@ -23,6 +23,7 @@
 #define IDE_GTK_INSIDE
 # include "ide-animation.h"
 # include "ide-cell-renderer-fancy.h"
+# include "ide-entry-popover.h"
 # include "ide-fancy-tree-view.h"
 # include "ide-gtk-enums.h"
 # include "ide-menu-manager.h"