### 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
} else {
					
					_end_dragging();
				}
				tile_atlas_control->queue_redraw();
				tile_atlas_control_unscaled->queue_redraw();
				alternative_tiles_control->queue_redraw();
				alternative_tiles_control_unscaled->queue_redraw();
				tile_atlas_view->queue_redraw();
				return;
			} else if (mb->get_button_index() == MouseButton::RIGHT) {
				
				if (mb->is_pressed()) {
					drag_type = DRAG_TYPE_MAY_POPUP_MENU;
					drag_start_mouse_pos = tile_atlas_control->get_local_mouse_position();
				} else {
					
					_end_dragging();
				}
				tile_atlas_control->queue_redraw();
				tile_atlas_control_unscaled->queue_redraw();
				alternative_tiles_control->queue_redraw();
				alternative_tiles_control_unscaled->queue_redraw();
				tile_atlas_view->queue_redraw();
				return;
			}
		}
	}
}
void TileSetAtlasSourceEditor::_end_dragging() {