Exercise 2: Install Prettier & Format a File — Possible Solution
====================================================================

STEPS
------------------------------
1. Press Ctrl+Shift+X, search for "Prettier" — the official
   "Prettier - Code formatter" extension (by Prettier) appears near
   the top.
2. Click Install.
3. Open (or create) a messily-formatted JSON file, for example:
       {"name":"Ada","age":28,"languages":["Python","JavaScript"]}
4. Press Ctrl+Shift+P to open the Command Palette (Chapter 2), type
   "Format Document", and press Enter.
5. If this is the first time formatting this file type, VS Code may
   ask which formatter to use — select Prettier. The file reformats
   immediately:
       {
         "name": "Ada",
         "age": 28,
         "languages": ["Python", "JavaScript"]
       }

WHAT TO NOTE
------------------------------
Prettier made every formatting decision itself — indentation, spacing
after colons, line breaks — with no configuration required, exactly
the "opinionated, zero-configuration" description from the chapter.
Optionally, enabling "Format On Save" in Settings makes this happen
automatically every time you save, removing the need to run the
command manually at all going forward.

WHY THIS WORKS AS AN ANSWER
------------------------------
This exercise reuses two things from earlier chapters directly:
installing an extension via the Extensions view (this chapter's own
Marketplace section) and running a command via the Command Palette
(Chapter 2) — tying the new skill to already-established navigation
habits rather than introducing yet another new mechanism.

Choosing a JSON file specifically demonstrates that Prettier isn't
JavaScript-specific — it formats several different file types
consistently, which is part of why it's listed among this chapter's
"genuinely essential regardless of language" picks.