fails to start, if bookmark file doesn't exist

[tmahlburg]

Traceback (most recent call last):
File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
exec(code, run_globals)
File "/home/tillm/src/tfm/tfm/main.py", line 13, in
window = tfm.tfm(sys.argv)
File "/home/tillm/src/tfm/tfm/tfm.py", line 100, in init
self.bookmarks = bm(path_to_bookmark_file=os.path.join(self.config_dir,
File "/home/tillm/src/tfm/tfm/bookmarks_model.py", line 31, in init
open(path_to_bookmark_file, 'a').close()
FileNotFoundError: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/home/tillm/.config/tfm/bookmarks'