### Tested versions

- Reproducible in: v4.2.stable.arch_linux
- Not Reproducible in: v4.1.3.stable.official [f06b6836a]

### System information

Garuda Linux (2.6.19-2)

### Issue description

A minor issue where UI Icons are not rendering on the Group Editor window, attaching a screenshot for reference:
![Screenshot_604](https://github.com/godotengine/godot/assets/22623256/c366164a-3d9a-4dcf-97a0-199b5a5a7ecc)

The icons were expected for Buttons like Add, Remove, Filter, etc.

### Steps to reproduce

Select any Node and go to the `Node` panel, click `Manage Groups` and the window will open.

### Minimal reproduction project (MRP)

Minor issue, easily reproducible following the above steps.
#include "groups_editor.h"
#include "editor/editor_node.h"
#include "editor/editor_scale.h"
#include "editor/editor_string_names.h"
#include "editor/editor_undo_redo_manager.h"
#include "editor/gui/scene_tree_editor.h"
#include "editor/scene_tree_dock.h"
#include "scene/gui/button.h"
#include "scene/gui/label.h"
#include "scene/gui/line_edit.h"
#include "scene/gui/tree.h"
#include "scene/resources/packed_scene.h"
static bool can_edit(Node *p_node, String p_group) {