Remove billing and checkout redirect buttons and related services

Deleted the billing-redirect-button, checkout-redirect-button, and embedded-stripe-checkout components. Additionally, removed the shadcn directory, which encompassed billing-related icons. This change streamlines the subscription settings interface and organizes the system's payment management. This update is a stepping stone towards improving the billing system's overall architecture.

apps/web/app/(dashboard)/home/(user)/layout.tsx

@@ -1,8 +1,8 @@
+import { Page } from '@kit/ui/page';
+
 import { HomeSidebar } from '~/(dashboard)/home/components/home-sidebar';
 import { withI18n } from '~/lib/i18n/with-i18n';
 
-import { Page } from '@kit/ui/page';
-
 function UserHomeLayout({ children }: React.PropsWithChildren) {
   return <Page sidebar={<HomeSidebar />}>{children}</Page>;
 }