fix: Only import tqdm when needed

import platform

import json

from functools import lru_cache

import tqdm

from modules import cmd_args, errors

from modules.paths_internal import script_path, extensions_dir

        return

    with startup_timer.subcategory("run extensions installers"):

        import tqdm

        progress_bar = tqdm.tqdm(list_extensions(settings_file))

        for dirname_extension in progress_bar:

            progress_bar.set_description(f"Installing {dirname_extension}")