Refactor AWB, Import Invoice, and Invoice Blade templates to improve
rendering compatibility with Dompdf.
Key changes:
- Replace flexbox and box-sizing with table-based layouts to ensure
consistent rendering in Dompdf.
- Implement `@page` margins instead of container padding to prevent
content overflow and clipping.
- Update color palette to a modern navy and gray scheme.
- Adjust font sizes and typography for better readability and
professional appearance.
- Fix width issues by using 100% width containers instead of fixed
millimeter widths.
