fix:push notification UI, settings and API

Introduce NotificationManager, NotificationPrompt, NotificationSettings,
NotificationSettingsSheet and integrate into the profile panel. Add
server GET/POST endpoints for notification preferences. Add
lucide-svelte dependency and update CSP connect-src to allow
fcm.googleapis.com and android.googleapis.com

src/hooks.server.ts

@@ -52,7 +52,7 @@ export const handle: Handle = async ({ event, resolve }) => {
 			"font-src 'self' fonts.gstatic.com; " +
 			"img-src 'self' data: blob: *.openstreetmap.org *.tile.openstreetmap.org *.r2.cloudflarestorage.com *.r2.dev; " +
 			"media-src 'self' *.r2.cloudflarestorage.com *.r2.dev; " +
-			"connect-src 'self' *.openstreetmap.org; " +
+			"connect-src 'self' *.openstreetmap.org https://fcm.googleapis.com https://android.googleapis.com; " +
 			"frame-ancestors 'none'; " +
 			"base-uri 'self'; " +
 			"form-action 'self';"