[Shopify] Move presentment currency fields to Invoice Details fasttab

[onbuyuka]

Summary

The presentment currency fields were incorrectly placed on the General fasttab of the Shopify Order page. This PR moves them to the Invoice Details fasttab where they logically belong alongside other invoice-related amounts.

Changes

ShpfyOrder.Page.al (Page 30113)

• Moved ProcessedCurrHandling group from General to Invoice Details fasttab
• Moved PresentmentCurrency group from General to Invoice Details fasttab
• Fixed typo in group name: ProcessedCurrHanndling → ProcessedCurrHandling

ShpfyOrderTotalsFactBox.Page.al (Page 30172)

• Added conditional visibility to show either shop currency or presentment currency amounts based on order type
• Added new ShopifyPresentmentTotals group with presentment amounts (Subtotal, Shipping, Total, VAT, Rounding)
• Added ShopifyPresentmentCurrency group to display presentment currency code
• Both standard and presentment groups toggle visibility based on IsPresentmentCurrencyOrder()

Fields in Invoice Details (when presentment currency is used)

Field	Description
Processed Currency Handling	Shows how currency was handled when processing (visible when order is processed)
Presentment Subtotal Amount	Subtotal in customer's currency
Pres. Shipping Charges Amount	Shipping charges in customer's currency
Presentment Total Amount	Total in customer's currency
Presentment VAT Amount	Tax amount in customer's currency
Presentment Discount Amount	Discount in customer's currency
Presentment Currency Code	The currency code used

Fixes AB#619504
Fixes AB#619505