Module not found: Error: Can't resolve 'chart' issue fix on windows

[petergaal91]

Description of change

This PR fixes the Module not found: Error: Can't resolve 'chart' in ''[Your working directory]\node_modules\angular-chart.js\dist' when we compile this package with webpack and babel on windows

Pull Request check-list

• Run gulp test to ensure there are no linting, or style issues and all tests pass.
• Squash your commits into a few commits only.
• Make sure the commit message is short, concise and descriptive of the issues you're fixing.
• Avoid mixing up multiple issues and/or features, open one pull request for each issue.
• Have you updated the documentation and / or examples?
• Have you included a new test?

[aalonzolu]

Thanks for the fix, hope it will be merged soon.