Display tile ID along with name

Fixes #20895.

editor/plugins/tile_set_editor_plugin.cpp

@@ -900,12 +900,13 @@ void TileSetEditor::_on_workspace_overlay_draw() {
 				else if (tileset->tile_get_tile_mode(t_id) == TileSet::ATLAS_TILE)
 					c = COLOR_ATLAS;
 				c.a = tile_names_opacity;
+				String tile_id_name = String::num(t_id, 0) + ": " + tileset->tile_get_name(t_id);
 				Ref<Font> font = get_font("font", "Label");
-				region.set_size(font->get_string_size(tileset->tile_get_name(t_id)));
+				region.set_size(font->get_string_size(tile_id_name));
 				workspace_overlay->draw_rect(region, c);
 				region.position.y += region.size.y - 2;
 				c = Color(0.1, 0.1, 0.1, tile_names_opacity);
-				workspace_overlay->draw_string(font, region.position, tileset->tile_get_name(t_id), c);
+				workspace_overlay->draw_string(font, region.position, tile_id_name, c);
 			}
 		}
 	}