### 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
read_only = EditorNode::get_singleton()->is_resource_read_only(tile_set);
				}
				
				tool_paint_button->set_disabled(read_only);
				tools_settings_erase_button->set_disabled(read_only);
				tool_advanced_menu_button->set_disabled(read_only);
				
				_update_source_inspector();
				
				_update_fix_selected_and_hovered_tiles();
				_update_tile_id_label();
				_update_atlas_view();
				_update_atlas_source_inspector();
				_update_tile_inspector();
				_update_tile_data_editors();
				_update_current_tile_data_editor();
				tile_set_changed_needs_update = false;
			}
		} break;
		case NOTIFICATION_EXIT_TREE: {
			for (KeyValue<String, TileDataEditor *> &E : tile_data_editors) {
				Control *toolbar = E.value->get_toolbar();
				if (toolbar->get_parent() == tool_settings_tile_data_toolbar_container) {
					tool_settings_tile_data_toolbar_container->remove_child(toolbar);
				}
			}
		} break;
	}
}
void TileSetAtlasSourceEditor::_bind_methods() {