Update build, linter and formatter

[notaphplover]

Description

Changed

• Updated build to provide both cjs and ems targets.
• Updated linter to use eslint@9.
• Updated formatter to use prettier.

How Has This Been Tested?

Tests run successfully.

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 change)

Checklist:

• 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 read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.