Improve TypeScript cheat sheet with strategic security, performance, and testing patterns#2

Copilot wants to merge 1 commit into

mainomerakben/developer-cheat-sheets:mainfrom

copilot/fix-0a020645-cd08-418b-87ec-464383749095omerakben/developer-cheat-sheets:copilot/fix-0a020645-cd08-418b-87ec-464383749095Copy head branch name to clipboard