Consider adding package exports #151

Search terms
package exports
esm
cjs

Is your feature request related to a problem? Please describe.
The user currently have to import their helpers like import '@upfrontjs/framework/string.es.min.js';
What would be ideal if import '@upfrontjs/framework/string was enough to specify and the rest can be figured out by the bundlers.

Describe the solution you'd like
A clear and concise description of what you want to happen.

Describe how this would benefit the project/others
better discoverability for IDEs, less things to type

Describe alternatives you've considered
not applicable

Additional context
microsoft/TypeScript#33079