### Godot version

v4.2.dev3.official [013e8e3af]

### System information

Windows 11, Core i5-12400F, RX 6600

### Issue description

TileSet->Setup->Separation maybe should have "px" like rest?
![Screenshot 2023-08-21 162202](https://github.com/godotengine/godot/assets/962340/3c6b9a97-7520-4610-8153-7882cc9c303f)
I know this is pixels from testing it.

TileSet->Select is this Animation Separation "px" too? idk
![Screenshot 2023-08-21 162131](https://github.com/godotengine/godot/assets/962340/fcb580e3-9ff7-41d8-92d3-e585841d3803)
I tried setting up animation separation and got a not enough room error, so maybe not "px". idk


Thanks.


### Steps to reproduce

- open TileSet->Setup->Separation, note some have "px" and one doesn't
- open TileSet->Select, is this separation "px" too?


### Minimal reproduction project

n/a
memdelete(tile_proxy_object);
	memdelete(atlas_source_proxy_object);
	
	
	if (tile_set.is_valid()) {
		tile_set->disconnect_changed(callable_mp(this, &TileSetAtlasSourceEditor::_tile_set_changed));
	}
}
void EditorPropertyTilePolygon::_add_focusable_children(Node *p_node) {
	Control *control = Object::cast_to<Control>(p_node);
	if (control && control->get_focus_mode() != Control::FOCUS_NONE) {
		add_focusable(control);
	}
	for (int i = 0; i < p_node->get_child_count(); i++) {
		_add_focusable_children(p_node->get_child(i));
	}
}
void EditorPropertyTilePolygon::_polygons_changed() {
	if (String(count_property).is_empty()) {
		if (base_type == "OccluderPolygon2D") {
			
			Ref<OccluderPolygon2D> occluder;
			if (generic_tile_polygon_editor->get_polygon_count() >= 1) {
				occluder.instantiate();
				occluder->set_polygon(generic_tile_polygon_editor->get_polygon(0));
			}