fix(css-loader): do not use localName for css modules in node_modules

[zacowan]

Description

Port of #613 to v6 of one-app-bundler.

Motivation

See #613 for original motivation.

Test Conditions

Added unit tests to validate that css modules do not use localName.

Additionally, validated the change locally by bundling a one app module, which uses a dependency that imports css modules, using the webpack-based bundler.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (adding or updating documentation)
• Dependency update
• Security update

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation and I have updated the documentation accordingly.
• These changes should be applied to a maintenance branch.
• I have added the Apache 2.0 license header to any new files created.