New: Quick-create buttons for every notice type

We've redesigned how you create notices from the dashboard to make it faster to post the right type of update.

The "New Notice" button in the navigation bar now includes a dropdown menu that lets you jump straight into creating a specific notice type — Incident, Maintenance, Historic, or General — with the form pre-filled to the right settings.

Previously, shortcuts for creating notices were tucked inside the timeline sections on the notices page. This new approach puts them all in one consistent place, always accessible regardless of which page you're on.

The primary button still works exactly as before — click it to open the notice form and choose your type from there.