Give each Monero account a swipeable card with its balance and QR

apps/ios/Koins/Views/SettingsView.swift

@@ -4,12 +4,48 @@ struct SettingsView: View {
   @EnvironmentObject private var model: AppModel
   @Environment(\.dismiss) private var dismiss
 
+  private let currencies = [
+    "USD", "EUR", "GBP", "CHF", "JPY", "CNY", "CAD", "AUD",
+    "NZD", "SGD", "HKD", "KRW", "INR", "BRL", "SEK", "NOK",
+    "DKK", "MXN", "ZAR", "TRY",
+  ]
+
   var body: some View {
     ZStack {
       Theme.background.ignoresSafeArea()
       VStack(alignment: .leading, spacing: 18) {
         ScreenHeader(title: "Settings", subtitle: "Security and device options", onBack: { dismiss() })
 
+        Card {
+          VStack(alignment: .leading, spacing: 10) {
+            Text("Currency")
+              .font(.system(size: 13, weight: .semibold))
+              .foregroundStyle(Theme.muted)
+
+            LazyVGrid(columns: [GridItem(.adaptive(minimum: 64), spacing: 8)], spacing: 8) {
+              ForEach(currencies, id: \.self) { currency in
+                let selected = model.fiatCurrency == currency
+                Button {
+                  model.fiatCurrency = currency
+                } label: {
+                  Text(currency)
+                    .font(.system(size: 13, weight: .medium))
+                    .frame(maxWidth: .infinity)
+                    .padding(.vertical, 8)
+                    .background(selected ? Theme.accent : Theme.surfaceAlt)
+                    .foregroundStyle(selected ? Color.black : Theme.text)
+                    .clipShape(RoundedRectangle(cornerRadius: 10, style: .continuous))
+                }
+              }
+            }
+
+            Text("Prices come from CoinGecko (with a Kraken fallback for USD and EUR) and refresh about once a minute.")
+              .font(.system(size: 11))
+              .foregroundStyle(Theme.muted)
+              .padding(.top, 4)
+          }
+        }
+
         Card {
           Toggle(isOn: Binding(get: { model.faceIDEnabled },
                                set: { model.faceIDEnabled = $0 })) {
@@ -38,7 +74,7 @@ struct SettingsView: View {
       .padding(.top, 12)
     }
     .preferredColorScheme(.dark)
-    .presentationDetents([.medium])
+    .presentationDetents([.medium, .large])
     .presentationDragIndicator(.visible)
   }
 }