Generate ESM/CJS variants of `dynamicIconImports`

[dan-lee]

Probably fixes #2366

What is the purpose of this pull request?

• [ ] New Icon
• [x] Bug fix
• [ ] New Feature
• [ ] Documentation update
• [ ] Other:

Description

When trying to bundle my library with an import of dynamicIconImports:

import dynamicIconImports from "lucide-react/dynamicIconImports.js";

I get this error:

(node:52646) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.

export { dynamicIconImports as default };
^^^^^^

SyntaxError: Unexpected token 'export'

I think there are 3 options to solve this:

1. Set the "type": "module" in the package.json
2. Use .mjs as extension
3. Add conditional exports

I chose the second option for simplicity and now it creates two separate files for CJS and ESM. Let me know if there are concerns. I tried to rename the file locally to .mjs which resolved the error.

Before Submitting

• [x] I've read the Contribution Guidelines.
• [x] I've checked if there was an existing PR that solves the same issue.