Enhance promo code management in admin panel with detailed views and export functionality

- Introduced a new method to retrieve detailed promo code information, improving the clarity of promo management.
- Added functionality to export promo code activations to CSV, enhancing data accessibility for admins.
- Streamlined the handling of promo code edits and improved user prompts for better interaction.
- Updated localization files to reflect new messages and ensure consistency across the admin panel.

locales/en.json

@@ -161,9 +161,20 @@
   "admin_promo_edit_button": "✏️ Edit",
   "admin_promo_delete_button": "🗑 Delete",
   "admin_promo_edit_prompt": "Send new details for <code>{code}</code> in format: CODE BONUS_DAYS MAX_USES [VALIDITY_DAYS]",
-  "admin_promo_updated_success": "Promo <code>{code}</code> updated.",
-  "admin_promo_deleted_success": "Promo <code>{code}</code> deleted.",
+  "admin_promo_updated_success": "Promo {code} updated.",
+  "admin_promo_deleted_success": "Promo {code} deleted.",
   "admin_promo_not_found": "Promo not found.",
+  "admin_promo_export_csv_button": "📄 Export to CSV",
+  "admin_promo_export_caption": "📄 Activations for promo code {code}",
+  "admin_promo_edit_select_field": "Select a field to edit:",
+  "admin_promo_prompt_bonus_days": "Enter the new number of bonus days:",
+  "admin_promo_prompt_max_activations": "Enter the new maximum number of activations:",
+  "admin_promo_prompt_validity_days": "Enter the new validity period in days (0 for indefinite):",
+  "admin_promo_edit_success": "Promo code updated successfully.",
+  "admin_promo_invalid_input": "Invalid input, please try again.",
+  "admin_promo_edit_bonus_days": "🎁 Bonus Days",
+  "admin_promo_edit_max_activations": "🔢 Max Activations",
+  "admin_promo_edit_validity": "⏰ Validity",
 
   "admin_ban_user_prompt": "Enter user ID or @username to ban:",
   "admin_user_not_found_in_bot_db": "User <code>{user_id}</code> not found in bot database.",