Implement the Trie Data Structure

The project currently lacks implementations of the Trie data structure.

- Create Trie.js file in the project directory.

- Describe the Trie data structure.

- Implement the Trie data structure in JavaScript including methods like insert, search, and delete.

- Provide an example use case, such as implementing an autocomplete system.

- Add the data structure to the "JavaScript Data Structures" section in the README.

Review the existing JavaScript Data Structures section and project layout to determine where Trie.js belongs. Implement the requested Trie methods—insert, search, and delete—and document the structure with an autocomplete example. Update README.md so the Trie appears in the JavaScript Data Structures section; completion means the implementation, explanation, example, and README entry are all present.

Scritto dal modello di indicizzazione a partire dal testo della issue.