# Walkthrough - Moved Save Button to Bottom Navigation Bar

I have updated the `AddProduct` screen to improve user experience by making the "Save & Publish" / "Update" button always visible.

## Changes

### 1. Moved Button to Bottom Navigation Bar

The `ElevatedButton` for saving or updating the product has been moved from the end of the scrollable form to the `Scaffold`'s `bottomNavigationBar`.

-   **File**: `lib/Screens/Products/add product/add_product.dart`
-   **Change**: Wrapped the button in a `Container` with shadow and padding, and assigned it to `bottomNavigationBar`.
-   **Benefit**: The button is now fixed at the bottom of the screen, making it accessible at any scroll position.

### 2. Adjusted Scroll Padding

Added bottom padding to the `SingleChildScrollView` to ensure the last form fields (like Warranty/Guarantee) are not obscured by the new bottom bar.

-   **File**: `lib/Screens/Products/add product/add_product.dart`
-   **Change**: Updated `padding` to `EdgeInsets.only(left: 16, right: 16, top: 16, bottom: 80)`.

## Verification Results

### Automated Tests
- Not applicable for this UI change.

### Manual Verification
- Verified that the code structure correctly places the button outside the scroll view.
- Verified that the `onPressed` logic utilizes the correct `ref` and `context`.