Use named exports for all packages with a default export #1951

Note

CJS compatibility should not be a problem as changeless is a cli tool and usually is not bundled

Adding ESM module log from a require() call for reference:

export { foo } -> logs { foo: [Function: foo] }
export default foo -> logs { __esModule: true, default: [Function: foo] }
export { foo }; export default foo -> logs { __esModule: true, default: [Function: foo], foo: [Function: foo] }