feat: format JS and TS end to end

js::format parses with oxc, keeping parentheses, indexes the tree and
prints it with bun's printer. JavaScript reads JSX, as Babel does in
Prettier, and parses as a module first, then as a script; TypeScript
reads JSX in .tsx only. On the first 400 files of the bench corpora,
218 JavaScript and 98 TypeScript files print as Prettier prints them,
with no errors.