Interactive Quizzes as HTML Widgets // Creates interactive JavaScript-based quizzes as 'HTML' widgets. Offers three quiz types: a single question with instant feedback (singleQuestion()), a multi-question quiz with navigation, timer, and results (multiQuestions()), and fill-in-the-blank cloze exercises (fillBlanks()). All quizzes auto-detect single- choice and multiple-choice modes from the input data, support customizable styling, keyboard navigation, and multilingual UI (English, German, French, Spanish). Designed for use in 'R Markdown', 'Quarto', and 'Shiny' applications. The singleQuestion() quiz design was inspired by Ozzie Kirkby https://codepen.io/ozzie/pen/pvrVLm. The multiQuestions() quiz design was inspired by Abhilash Narayan https://codepen.io/abhilashn/pen/BRepQz.