This pull request introduces several changes to modernize the codebase and improve compatibility with ES modules. The most significant updates include switching from CommonJS to ES module syntax, adding the"type": "module" field inpackage.json, and updating dependencies. Additionally, import paths across multiple files have been updated to explicitly include.js extensions for better module resolution.

Modernization of module system:

• .babelrc.js: Replacedmodule.exports withexport default to align with ES module syntax.
• package.json: Added"type": "module" to indicate the use of ES modules.
• package.json: Removed the creation ofpackage.json files with"type" fields during build scripts, as the"type": "module" field now applies globally.

Dependency updates:

• package.json: Updated@restart/ui to version^2.0.0-beta.5 anddom-helpers to version^6.0.1 for improved functionality and compatibility.

Import path updates:

• Updated all import paths across multiple files (e.g.,src/AbstractModalHeader.tsx,src/Accordion.tsx,src/Alert.tsx, etc.) to include.js extensions explicitly, ensuring compatibility with ES modules. Examples include:
  • src/AbstractModalHeader.tsx: Changed imports forCloseButton andModalContext to include.js extensions.
  • src/Accordion.tsx: Updated imports forAccordionBody,AccordionButton,AccordionCollapse, and others to include.js extensions.
  • src/Alert.tsx: Updated imports forAlertHeading,AlertLink,Fade, and others to include.js extensions.