Error in config if there's double indentation

[Curzey]

Describe the bug config.yml does not respect ignore_files settings if the respective file or path starts with extra indentation.

To Reproduce

1. Go to your projects' config.yml and find one of the themes' ignore_files entry (or add it).
2. Add extra spacing (tabs/spaces) before the dash "-".

It should now look something like

Expected behavior A clear and concise description of what you expected to happen.

Environment (please complete the following information):

• OS [e.g. iOS]:
  • Themekit version (run theme version to check):
• Editor [e.g. atom, sublime]:
• Ignore:

Additional context Add any other context about the problem here.

[Curzey]

Missclick ^_^