Remove redundant console logs and comments across components

- Cleaned up unused debug logs and comments in `AddNewBookForm`, `QuillConversation`, `OfflinePinSetup`, `OfflinePinVerify`, `ShortStoryGenerator`, and `page.tsx`.
- Improved overall code readability and maintainability.

components/offline/OfflinePinSetup.tsx

@@ -54,14 +54,10 @@ export default function OfflinePinSetup({ onClose, onSuccess, showOnFirstLogin }
 
     try {
       if (window.electron) {
-        // Set the PIN
         const result = await window.electron.offlinePinSet(pin);
 
         if (result.success) {
-          // Enable offline mode
           await window.electron.offlineModeSet(true, 30); // 30 days sync interval
-
-          console.log('[OfflinePin] PIN configured successfully');
           onSuccess?.();
         } else {
           setError(result.error || t('offline.pin.errors.setupFailed'));