### Issue:
When an invoice has a down payment on a line with a withholding tax, the `PrepaidPayment/PaidAmount` in the UBL XML included the withholding tax amount, causing a mismatch with `LegalMonetaryTotal/PrepaidAmount` which correctly excludes it

### Cause:
`PrepaidPayment/PaidAmount` was set directly from `prepayment_move.amount_total`, which includes all taxes `LegalMonetaryTotal/PrepaidAmount` uses `_aggregate_base_line_tax_details` to exclude withholding taxes, but this was not applied to the `PrepaidPayment` node

### Fix:
Using `prepayment_move.amount_total` directly includes all taxes and does not match the rounding logic of `LegalMonetaryTotal`

Instead, `_aggregate_base_line_tax_details` is used with the same `total_grouping_function` as `LegalMonetaryTotal`, ensuring both nodes use the same rounding logic and exclude withholding taxes

Reversed down payment moves are also excluded from `AdditionalDocumentReference` to avoid referencing cancelled invoices

### Steps to reproduce:
- Install `l10n_pe_edi` and `sale_management` with demo data
- Switch to the PE company
- Create and confirm a Sale Order (Customer: PE Company, Product: Any, Unit Price: 200, Taxes: VAT 18% and 3% IGV Withholding)
- Create, confirm and pay a Down Payment Invoice (Fixed: 28.92)
- Go back to the SO and create the Regular Invoice
- Confirm it and click Process Now
- Open the EDI Document tab and download the XML

Before the fix, the sum of `PrepaidPayment/PaidAmount` did not match `LegalMonetaryTotal/PrepaidAmount`

opw-6273903

Steps to reproduce:-
- Open any report.
- Click on a particular line to unfold more than once very fast(or throttle network to 3G)
- Once line is unfolded click again to fold that line.
- Line is not folding.

Cause:-
- When we clicked multiple times to unfold line, duplicate child lines were created(as many times as many times we clicked).
- Because when first promise was not resolved so `unfolded = false` and we clicked again so new promise also tries to unfold  the same line, resulting in unfolding the same line multiple times.
- In version 17.0 these duplicate child lines are created but somehow not visible but it breaks `foldLine`. From version 18.0 onwards these duplicate child lines are visible.

Solution: In `unfoldLine` set the flag `unfolding`. So in all clicks other than first, we get `unfolding = true` and don't proceed further, preventing unfolding the same line multiple times.

task-6260425

Forward-Port-Of: odoo/enterprise#126504
Forward-Port-Of: odoo/enterprise#120392