Maintenance page card component.
Renders the maintenance mode card with header, subtext, and optional countdown.
Used by the /maintenance LiveView. Can also be embedded in other views.
Examples
<PhoenixKitWeb.Components.Core.MaintenancePage.maintenance_card />
<PhoenixKitWeb.Components.Core.MaintenancePage.maintenance_card
header="Coming Soon"
subtext="Check back later!"
/>
Summary
Functions
Renders the maintenance card (header + subtext + emoji).