chore(Example): Add max-age=24h for firebase.json.
chore(Example): Add max-age=24h for firebase.json.

Closes #965

PiperOrigin-RevId: 187248829

kevmoo/angular,angulardart/angular,angulardart/angular,chalin/angular2,matanlurey/angular,kevmoo/angular,matanlurey/angular,angulardart/angular,kevmoo/angular,chalin/angular2,matanlurey/angular,chalin/angular2