feat(oxfmt): add arrayWrap option for array literal wrapping control

[jgeurts]

Fix #20007

Add arrayWrap configuration option to oxfmt with three modes:

• "preserve" (default): use Prettier's auto-expand heuristic
• "collapse": collapse arrays to single line when they fit within printWidth
• { "minElementsToWrap": N }: force one-element-per-line when count >= threshold

Applies to array expressions, array destructuring patterns, and array assignment targets.

NOTE: I used Claude to help create these changes. Rust is not my first language, so please let me know if there are any improvements or changes that I can make!

[hilja]

Tangentially realated: I've been dreaming of a "matrix wrap", if key count exceeds a threshold it would wrap them more efficiently.

Is this something oxfmt could have or are we on plugin territory?

export const timezones = {
  // oxfmt-ignore
  Africa: [
    'Abidjan', 'Accra', 'Addis_Ababa', 'Algiers', 'Asmara', 'Bamako',
    'Bangui', 'Banjul', 'Bissau', 'Blantyre', 'Brazzaville', 'Bujumbura',
    'Cairo', 'Casablanca', 'Ceuta', 'Conakry', 'Dakar', 'Djibouti', 'Douala',
    'El_Aaiun', 'Freetown', 'Gaborone', 'Harare', 'Johannesburg', 'Juba',
    'Kampala', 'Khartoum', 'Kigali', 'Kinshasa', 'Lagos', 'Libreville',
    'Lome', 'Luanda', 'Lubumbashi', 'Lusaka', 'Malabo', 'Maputo',
    'Maseru', 'Mbabane', 'Mogadishu', 'Monrovia', 'Nairobi', 'Ndjamena',
    'Niamey', 'Nouakchott', 'Ouagadougou', 'Sao_Tome', 'Tripoli', 'Tunis',
    'Windhoek',
  ],
  // ...
}