### 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
generic_tile_polygon_editor = memnew(GenericTilePolygonEditor);
	generic_tile_polygon_editor->set_use_undo_redo(false);
	generic_tile_polygon_editor->clear_polygons();
	add_child(generic_tile_polygon_editor);
	generic_tile_polygon_editor->connect("polygons_changed", callable_mp(this, &EditorPropertyTilePolygon::_polygons_changed));
	
	_add_focusable_children(generic_tile_polygon_editor);
}
bool EditorInspectorPluginTileData::can_handle(Object *p_object) {
	return Object::cast_to<TileSetAtlasSourceEditor::AtlasTileProxyObject>(p_object) != nullptr;
}
bool EditorInspectorPluginTileData::parse_property(Object *p_object, const Variant::Type p_type, const String &p_path, const PropertyHint p_hint, const String &p_hint_text, const BitField<PropertyUsageFlags> p_usage, const bool p_wide) {
	Vector<String> components = String(p_path).split("/", true, 2);
	if (components.size() == 2 && components[0].begins_with("occlusion_layer_") && components[0].trim_prefix("occlusion_layer_").is_valid_int()) {
		
		int layer_index = components[0].trim_prefix("occlusion_layer_").to_int();
		ERR_FAIL_COND_V(layer_index < 0, false);
		if (components[1] == "polygon") {
			EditorPropertyTilePolygon *ep = memnew(EditorPropertyTilePolygon);
			ep->setup_single_mode(p_path, "OccluderPolygon2D");
			add_property_editor(p_path, ep);
			return true;
		}
	} else if (components.size() >= 2 && components[0].begins_with("physics_layer_") && components[0].trim_prefix("physics_layer_").is_valid_int()) {
		
		int layer_index = components[0].trim_prefix("physics_layer_").to_int();
		ERR_FAIL_COND_V(layer_index < 0, false);
		if (components[1] == "polygons_count") {
			EditorPropertyTilePolygon *ep = memnew(EditorPropertyTilePolygon);