### 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
tile_atlas_view->set_v_size_flags(SIZE_EXPAND_FILL);
	tile_atlas_view->set_custom_minimum_size(Size2(200, 0) * EDSCALE);
	tile_atlas_view->connect("transform_changed", callable_mp(TilesEditorUtils::get_singleton(), &TilesEditorUtils::set_atlas_view_transform));
	tile_atlas_view->connect("transform_changed", callable_mp(this, &TileSetAtlasSourceEditor::_tile_atlas_view_transform_changed).unbind(2));
	right_panel->add_child(tile_atlas_view);
	tile_create_help = memnew(HBoxContainer);
	tile_atlas_view->add_child(tile_create_help);
	tile_create_help->set_mouse_filter(MOUSE_FILTER_IGNORE);
	tile_create_help->set_anchors_and_offsets_preset(Control::PRESET_BOTTOM_LEFT, Control::PRESET_MODE_MINSIZE, 30 * EDSCALE);
	tile_create_help->add_theme_constant_override("separation", 30 * EDSCALE);
	Label *help_label = memnew(Label(TTR("Hold Ctrl to create multiple tiles.")));
	tile_create_help->add_child(help_label);
	help_label = memnew(Label(TTR("Hold Shift to create big tiles.")));
	tile_create_help->add_child(help_label);
	base_tile_popup_menu = memnew(PopupMenu);
	base_tile_popup_menu->add_shortcut(ED_SHORTCUT("tiles_editor/delete", TTR("Delete"), Key::KEY_DELETE), TILE_DELETE);
	base_tile_popup_menu->add_item(TTR("Create an Alternative Tile"), TILE_CREATE_ALTERNATIVE);
	base_tile_popup_menu->connect("id_pressed", callable_mp(this, &TileSetAtlasSourceEditor::_menu_option));
	tile_atlas_view->add_child(base_tile_popup_menu);
	empty_base_tile_popup_menu = memnew(PopupMenu);
	empty_base_tile_popup_menu->add_item(TTR("Create a Tile"), TILE_CREATE);
	empty_base_tile_popup_menu->connect("id_pressed", callable_mp(this, &TileSetAtlasSourceEditor::_menu_option));
	tile_atlas_view->add_child(empty_base_tile_popup_menu);
	tile_atlas_control = memnew(TileAtlasControl(this));
	tile_atlas_control->connect("draw", callable_mp(this, &TileSetAtlasSourceEditor::_tile_atlas_control_draw));
	tile_atlas_control->connect("mouse_exited", callable_mp(this, &TileSetAtlasSourceEditor::_tile_atlas_control_mouse_exited));
	tile_atlas_control->connect("gui_input", callable_mp(this, &TileSetAtlasSourceEditor::_tile_atlas_control_gui_input));
	tile_atlas_view->add_control_over_atlas_tiles(tile_atlas_control);
	tile_atlas_control_unscaled = memnew(Control);
	tile_atlas_control_unscaled->connect("draw", callable_mp(this, &TileSetAtlasSourceEditor::_tile_atlas_control_unscaled_draw));