### Godot version

4.0.rc6.mono.official

### System information

macOS 12.0.1

### Issue description

Just a minor visual issue.

When opening an empty directory the focus highlight is drawn incorrectly. It looks like the UI is drawing a smaller rectangle within the main rect:
<img width="1058" alt="Bildschirmfoto 2023-02-28 um 14 13 31" src="https://user-images.githubusercontent.com/11627131/221868794-7450606d-e758-4104-8f33-182d9779d7f8.png">


This behavior also changes when you hover over other items in the view, so I'm not sure if this a general issue with the focus highlighting or just an issue in the directory view:
<img width="1052" alt="Bildschirmfoto 2023-02-28 um 14 32 54" src="https://user-images.githubusercontent.com/11627131/221869308-4756f26e-cda2-4057-be1e-7439030895dc.png">


### Steps to reproduce

1. New Project
2. Browse
3. Create Folder
4. Click or Tab to set focus on the empty directory view

### Minimal reproduction project

N/A
oc->sdf_index_buffer = 0;
		oc->sdf_index_count = sdf_indices.size();
		oc->sdf_point_count = p_points.size();
	}
	if (sdf_indices.size()) {
		if (oc->sdf_vertex_array == 0) {
			oc->sdf_index_count = sdf_indices.size();
			oc->sdf_point_count = p_points.size();
			glGenVertexArrays(1, &oc->sdf_vertex_array);
			glBindVertexArray(oc->sdf_vertex_array);
			glGenBuffers(1, &oc->sdf_vertex_buffer);
			glBindBuffer(GL_ARRAY_BUFFER, oc->sdf_vertex_buffer);
			GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ARRAY_BUFFER, oc->sdf_vertex_buffer, oc->sdf_point_count * 2 * sizeof(float), p_points.to_byte_array().ptr(), GL_STATIC_DRAW, "Occluder polygon SDF vertex buffer");
			glEnableVertexAttribArray(RS::ARRAY_VERTEX);
			glVertexAttribPointer(RS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float), nullptr);
			glGenBuffers(1, &oc->sdf_index_buffer);
			glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, oc->sdf_index_buffer);
			GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ELEMENT_ARRAY_BUFFER, oc->sdf_index_buffer, oc->sdf_index_count * sizeof(uint32_t), sdf_indices.to_byte_array().ptr(), GL_STATIC_DRAW, "Occluder polygon SDF index buffer");
			glBindVertexArray(0);
		} else {
			glBindBuffer(GL_ARRAY_BUFFER, oc->sdf_vertex_buffer);
			glBufferData(GL_ARRAY_BUFFER, p_points.size() * 2 * sizeof(float), p_points.to_byte_array().ptr(), GL_STATIC_DRAW);
			glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, oc->sdf_index_buffer);
			glBufferData(GL_ELEMENT_ARRAY_BUFFER, sdf_indices.size() * sizeof(uint32_t), sdf_indices.to_byte_array().ptr(), GL_STATIC_DRAW);
			glBindBuffer(GL_ARRAY_BUFFER, 0);
			glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
		}
	}
}
void RasterizerCanvasGLES3::occluder_polygon_set_cull_mode(RID p_occluder, RS::CanvasOccluderPolygonCullMode p_mode) {