feat: added TS support and related changes

[imzedi]

TypeScript Migration & Enhanced Build process

Migrates the library to TypeScript and improves build system while maintaining backward compatibility.

Changes

• Migrated to TypeScript with full type definitions
• Replaced webpack with tsup for better build performance
• Added support for React 16+ through React 18 (can work on 19 too)
• Added dual module support (CJS & ESM)
• Improved documentation and examples
• Removed unnecessary build configurations

New Features

• TypeScript type definitions and interfaces
• Multiple import pattern support
• React 18 example code
• Better tree-shaking support

Testing

✅ React 16 compatibility
✅ React 17 & 18 support verified
✅ All import patterns tested
✅ Bundle size optimized

Documentation

• Updated README with TypeScript information
• Added React 18 usage examples
• Improved import pattern documentation

Breaking Changes

• This update maintains full backward compatibility.

References

• Closes PRs: Add TypeScript type declaration file #84 , Add typescript support #50, Update react version in package.json #28
• Closes Issues: TypeScript support #25

Contributors

Special thanks ❤️ to @Tooni @Azuky @willibix

[linear]

IS-3174 TS support in react-unicons repo

[imzedi]

Merging this PR to release branch to publish rc