Add typescript and update docs

Release Notes for @smakss/password-generator v2.0.0 🚀

We're excited to roll out the latest version of the @smakss/password-generator package! 🎉

This release includes enhancements and bug fixes that solidify the library's functionality and streamline the user experience. Here's what's new:

Features ✨

• TypeScript Refactor: The entire codebase has been migrated to TypeScript, offering improved type safety and developer experience. 🛠️
• Simplified API: We've simplified the password generation function, making it even easier to use with fewer lines of code. 📏
• Random Length Option: Passwords now have a default random length between 1 and 20 when the length parameter isn't specified, adding an extra layer of Randomness! 🔀

Bug Fixes 🐛

• Prettier Integration: Resolved conflicts between ESLint and Prettier, ensuring a smoother development process and cleaner code formatting. ✅
• DX Tool Glitch: Fixed an issue where the developer experience tools incorrectly added a trailing comma, leading to linting errors. 🛠️

Documentation 📚

• Updated README: The documentation has been thoroughly updated to reflect the recent migration to TypeScript and API changes. 📄
• Enhanced Examples: We've added new examples to showcase the usage of the library with its current feature set. 📝

General 🌐

• Code Clean-up: We've gone through the internals with a fine-tooth comb to remove any redundant code, resulting in a leaner package. 🧹
• Improved Randomness: Enhanced the random generator function to ensure even more unpredictable and secure passwords. 🎲

As always, we recommend testing the new version in your development environment before deploying it to production. 🧪