refactor: Update quick actions description and enhance AppCustomizationPage layout

- Revised the quick actions description in multiple languages to clarify their purpose as "Quickpills in chat."
- Adjusted the layout of AppCustomizationPage by reintroducing the quick pills section for improved user interaction.
- Modified spacing between UI elements for better visual consistency and usability.
- Streamlined the component structure to enhance maintainability and readability.

lib/shared/utils/conversation_context_menu.dart

@@ -63,9 +63,7 @@ Future<void> showConduitContextMenu({
                 title: Text(
                   action.label,
                   style: AppTypography.standard.copyWith(
-                    color: action.destructive
-                        ? Colors.red
-                        : theme.textPrimary,
+                    color: action.destructive ? Colors.red : theme.textPrimary,
                     fontWeight: FontWeight.w500,
                   ),
                 ),