Fix empty js file output from css entry

[Rahmon]

Description of the Change

This change adds the plugin webpack-remove-empty-scripts to remove empty scripts generated when we have CSS entries.

Alternate Designs

Benefits

It's not necessary extending the webpack config to remove empty scripts.

Possible Drawbacks

Verification Process

Checklist:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests passed.

Applicable Issues

Closes: #90

Changelog Entry

Fixed empty scripts output when a CSS entry is added.

[github-actions]

ESLint Summary View Full Report

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Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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