Fixed blank white page caused by SelectItem validation error
Problem:
- SelectItem cannot have empty string as value
- Radix UI Select requires non-empty values
- Empty value for 'All types' filter caused component crash
Solution:
- Changed empty string to 'all' value for All types option
- Updated Select to use undefined when no filter selected
- Updated query logic to ignore 'all' value (treat as no filter)
- Updated hasActiveFilters check to exclude 'all' value
Changes:
- Select value: discountType || undefined
- Select onChange: value || '' (convert back to empty string)
- Query filter: discountType !== 'all' ? discountType : undefined
- Active filters: discountType && discountType !== 'all'
Result:
- No more SelectItem validation errors
- Page loads correctly
- Filter works as expected
- Clear filters button shows/hides correctly
7bbc098a8f