refactor(register): customer, supplier and article detail as documents, not card piles (#1624)

The three register detail pages rendered a handful of facts as a grid of
sparse bordered cards floating in an empty page. They now read as one
flowing document: serif entity name over a quiet type/status kicker,
quiet ghost actions top right (delete turns terracotta only on hover),
and hairline-kickered definition sections (KONTAKT, KUNDUPPGIFTER,
PRIS, BOKFORING, BETALNINGSUPPGIFTER, FAKTUROR) with aligned label/value
rows in a constrained column (max-w-2xl, supplier max-w-3xl for its
invoice table). Sections land with the standard stagger-enter.

New shared primitive components/ui/detail-section.tsx (DetailSection,
DefRow, DefEmpty) carries the grammar. Empty values render a muted
en dash for facts that matter (email, phone, expense account) and are
omitted row-wise otherwise; a section with nothing to say is omitted.

Behavior preserved: edit/deactivate/delete flows, confirm dialogs,
personal-number reveal + AttnLine, account-activation retry, viewer
lock states, routing and all existing i18n keys. New def_* label keys
added line-wise to both sv.json and en.json; customer invoice_count
gained ICU plural (1 faktura, not 1 fakturor).

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

messages/en.json

@@ -1274,9 +1274,17 @@
     "label_personal_number": "Personal no.:",
     "label_vat": "VAT:",
     "label_payment_terms": "Payment terms:",
+    "def_email": "Email",
+    "def_phone": "Phone",
+    "def_address": "Address",
+    "def_customer_number": "Customer number",
+    "def_org_number": "Org. no.",
+    "def_personal_number": "Personal number",
+    "def_vat": "VAT number",
+    "def_payment_terms": "Payment terms",
     "payment_terms_value": "{days} days",
     "verified": "Verified",
-    "invoice_count": "{count} invoices",
+    "invoice_count": "{count, plural, one {# invoice} other {# invoices}}",
     "load_failed_title": "Could not load customer",
     "load_failed_description": "Customer not found.",
     "updated_title": "Customer updated",
@@ -4456,6 +4464,20 @@
     "payment_terms_inline": "Payment terms: {days} days",
     "currency_inline": "Currency: {currency}",
     "expense_account_inline": "Expense account: {account}",
+    "delete": "Delete",
+    "kicker_org": "Org. no. {number}",
+    "def_email": "Email",
+    "def_phone": "Phone",
+    "def_address": "Address",
+    "def_vat": "VAT number",
+    "def_bankgiro": "Bankgiro",
+    "def_plusgiro": "Plusgiro",
+    "def_iban": "IBAN",
+    "def_bic": "BIC",
+    "def_payment_terms": "Payment terms",
+    "payment_terms_value": "{days} days",
+    "def_currency": "Currency",
+    "def_expense_account": "Expense account",
     "invoices_section_title": "Invoices",
     "new_invoice": "New invoice",
     "no_invoices": "No invoices registered for this supplier",

messages/sv.json

@@ -1274,9 +1274,17 @@
     "label_personal_number": "Persnr:",
     "label_vat": "VAT:",
     "label_payment_terms": "Betalningsvillkor:",
+    "def_email": "E-post",
+    "def_phone": "Telefon",
+    "def_address": "Adress",
+    "def_customer_number": "Kundnummer",
+    "def_org_number": "Org.nr",
+    "def_personal_number": "Personnummer",
+    "def_vat": "VAT-nummer",
+    "def_payment_terms": "Betalningsvillkor",
     "payment_terms_value": "{days} dagar",
     "verified": "Verifierad",
-    "invoice_count": "{count} fakturor",
+    "invoice_count": "{count, plural, one {# faktura} other {# fakturor}}",
     "load_failed_title": "Kunde inte ladda kund",
     "load_failed_description": "Kunden hittades inte.",
     "updated_title": "Kund uppdaterad",
@@ -4456,6 +4464,20 @@
     "payment_terms_inline": "Betalningsvillkor: {days} dagar",
     "currency_inline": "Valuta: {currency}",
     "expense_account_inline": "Kostnadskonto: {account}",
+    "delete": "Ta bort",
+    "kicker_org": "Org.nr {number}",
+    "def_email": "E-post",
+    "def_phone": "Telefon",
+    "def_address": "Adress",
+    "def_vat": "VAT-nummer",
+    "def_bankgiro": "Bankgiro",
+    "def_plusgiro": "Plusgiro",
+    "def_iban": "IBAN",
+    "def_bic": "BIC",
+    "def_payment_terms": "Betalningsvillkor",
+    "payment_terms_value": "{days} dagar",
+    "def_currency": "Valuta",
+    "def_expense_account": "Kostnadskonto",
     "invoices_section_title": "Fakturor",
     "new_invoice": "Ny faktura",
     "no_invoices": "Inga fakturor registrerade för denna leverantör",