### 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_proxy_object = memnew(AtlasTileProxyObject(this));
	tile_proxy_object->connect("changed", callable_mp(this, &TileSetAtlasSourceEditor::_tile_proxy_object_changed));
	tile_inspector = memnew(EditorInspector);
	tile_inspector->set_v_size_flags(SIZE_EXPAND_FILL);
	tile_inspector->set_show_categories(true);
	tile_inspector->edit(tile_proxy_object);
	tile_inspector->set_use_folding(true);
	tile_inspector->connect("property_selected", callable_mp(this, &TileSetAtlasSourceEditor::_inspector_property_selected));
	middle_vbox_container->add_child(tile_inspector);
	tile_inspector_no_tile_selected_label = memnew(Label);
	tile_inspector_no_tile_selected_label->set_v_size_flags(SIZE_EXPAND | SIZE_SHRINK_CENTER);
	tile_inspector_no_tile_selected_label->set_horizontal_alignment(HORIZONTAL_ALIGNMENT_CENTER);
	tile_inspector_no_tile_selected_label->set_autowrap_mode(TextServer::AUTOWRAP_WORD_SMART);
	tile_inspector_no_tile_selected_label->set_text(TTR("No tiles selected.\nSelect one or more tiles from the palette to edit its properties."));
	middle_vbox_container->add_child(tile_inspector_no_tile_selected_label);
	
	tile_data_editors_scroll = memnew(ScrollContainer);
	tile_data_editors_scroll->set_horizontal_scroll_mode(ScrollContainer::SCROLL_MODE_DISABLED);
	tile_data_editors_scroll->set_v_size_flags(SIZE_EXPAND_FILL);
	middle_vbox_container->add_child(tile_data_editors_scroll);
	VBoxContainer *tile_data_editors_vbox = memnew(VBoxContainer);
	tile_data_editors_vbox->set_h_size_flags(SIZE_EXPAND_FILL);
	tile_data_editors_scroll->add_child(tile_data_editors_vbox);
	tile_data_editors_popup = memnew(Popup);
	tile_data_editors_label = memnew(Label);
	tile_data_editors_label->set_text(TTR("Paint Properties:"));
	tile_data_editors_label->set_theme_type_variation("HeaderSmall");
	tile_data_editors_vbox->add_child(tile_data_editors_label);
	tile_data_editor_dropdown_button = memnew(Button);