Improve rule builder

[marcomontalbano]

What I did

I improved the Rule Builder UX:

• User should not be able to select an already set rule (hide already set rules).
• Cart total and Cart subtotal should be visible only when there's ONLY ONE currency in scope.
• When market rule is set, the currency parameter should be filtered based on selected markets.
• When currency rule is set (one or more), the market parameter should be filtered by all market with that selected list of currencies.
• The list of currencies should be calculated base on the promotion currency, promotion market and filters within the custom promotion rules
• Disable non applicable rules

improve-rule-builder.mp4

Checklist

• Make sure your changes are tested (stories and/or unit, integration, or end-to-end tests).
• Make sure to add/update documentation regarding your changes.
• You are NOT deprecating/removing a feature.