fix(#657): remove invalid comma from .eslintrc

[jkuester]

Description

Closes #657

Removes the invalid comma from the .eslintrc file that gets created by the initialize-project-layout action.

Code review items

• Readable: Concise, well named, follows the style guide, documented if necessary.
• Documented: Configuration and user documentation on cht-docs
• Tested: Unit and/or integration tests where appropriate
• Backwards compatible: Works with existing data and configuration. Any breaking changes documented in the release notes.

License

The software is provided under AGPL-3.0. Contributions to this project are accepted under the same license.

[medic-ci]

🎉 This PR is included in version 4.4.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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