Testing Footer Template Undefined Variable Fix
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1. Testing FooterPartial::render with logoUrl parameter...
✓ Footer renders correctly with logoUrl parameter

2. Testing FooterPartial::render without logoUrl parameter...
✓ No undefined variable warnings generated

3. Testing with other themes (ml and original)...
✓ Theme 'ml' renders without errors
✓ Theme 'original' renders without errors

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All tests completed! The undefined variable error in footer template is fixed.
The FooterPartial::render method now accepts additional variables via ...$vars parameter.
The layout.php file now passes logoUrl to the footer template.
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