♻️ refactor: Update component imports and improve code consistency

- Refactored sidebar component to include additional sheet elements and improved accessibility with SheetHeader, SheetTitle, and SheetDescription.
- Updated skeleton component for better readability and consistency in class names.
- Refined slider component by standardizing import statements and enhancing class name formatting.
- Enhanced sonner component with consistent import statements and improved class name formatting.
- Standardized switch component imports and class names for better readability.
- Improved table component structure and class name consistency across various elements.
- Refactored tabs component for better readability and consistent class name formatting.
- Updated textarea component for improved readability and consistency in class names.
- Fixed timeline component to safely access getBoundingClientRect.
- Refactored toggle group and toggle components for improved readability and consistency in class names.
- Updated tooltip component for better readability and consistent class name formatting.
- Enhanced enhanced-input component to support generic types for better type safety.
- Refactored use-mobile hook for improved readability and consistency.
- Updated countries utility to make certain properties optional for better flexibility.
- Refined tailwind configuration for improved readability and consistency in theme settings.

apps/admin/app/dashboard/marketing/email/broadcast-form.tsx

@@ -47,7 +47,7 @@ export default function EmailBroadcastForm() {
   const emailBroadcastSchema = z.object({
     subject: z.string().min(1, t('subject') + ' ' + t('cannotBeEmpty')),
     content: z.string().min(1, t('content') + ' ' + t('cannotBeEmpty')),
-    scope: z.string().default('all'),
+    scope: z.string(),
     register_start_time: z.string().optional(),
     register_end_time: z.string().optional(),
     additional: z