fix(cli): ValueError prints help for api-key

[JohnnyIrvin]

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/user/Desktop/Workspace/shell_craft/__main__.py", line 21, in <module>
    from shell_craft.cli import main
  File "/home/user/Desktop/Workspace/shell_craft/cli/__init__.py", line 21, in <module>
    from .main import main
  File "/home/user/Desktop/Workspace/shell_craft/cli/main.py", line 24, in <module>
    from .parser import PARSER, get_arguments
  File "/home/user/Desktop/Workspace/shell_craft/cli/parser.py", line 177, in <module>
    PARSER = initialize_parser(
  File "/home/user/Desktop/Workspace/shell_craft/cli/parser.py", line 148, in initialize_parser
    _add_args_parser(parser, module, KNOWN_ARGS)
  File "/home/user/Desktop/Workspace/shell_craft/cli/parser.py", line 89, in _add_args_parser
    module.add_arguments(parser)
  File "/home/user/Desktop/Workspace/shell_craft/cli/key.py", line 98, in add_arguments
    raise ArgumentError(None, "No API key found")
argparse.ArgumentError: No API key found

Fixes #52 -- API-Key when not defined will alert, and explain that the api-key is required and print the help.