Quick bolus: replace info button with ? sheet

Moves the "How does this work?" action out of the confirmation dialog
and onto a questionmark.circle toolbar button in a proper sheet.
Tapping ? opens an "About Quick Bolus" help sheet; dismissing it
returns to the quick bolus picker rather than closing it entirely.

The picker itself is now a .sheet (medium/large detents) instead of
a confirmationDialog, which allows the nested help sheet to work.

Trio/Sources/Modules/Home/View/HomeRootView.swift

@@ -1149,7 +1149,10 @@ extension Home {
         private func formatBolusConfirmTitle(_ amount: Decimal) -> String {
             let formatted = Formatter.bolusFormatter.string(from: amount as NSDecimalNumber) ?? amount.description
             return String(
-                format: String(localized: "Deliver %@ U?", comment: "Quick bolus confirmation dialog title; %@ is the formatted bolus amount"),
+                format: String(
+                    localized: "Deliver %@ U?",
+                    comment: "Quick bolus confirmation dialog title; %@ is the formatted bolus amount"
+                ),
                 formatted
             )
         }
@@ -1162,26 +1165,67 @@ extension Home {
                     CustomProgressView(text: String(localized: "Updating IOB...", comment: "Progress text when updating IOB"))
                 }
             }
-            .confirmationDialog(
-                String(localized: "Quick Bolus", comment: "Title of the quick bolus picker sheet"),
-                isPresented: $showQuickBolusPicker,
-                titleVisibility: .visible
-            ) {
-                Button(String(localized: "How does this work?", comment: "Quick bolus info button")) {
-                    showQuickBolusInfo = true
-                }
-                ForEach(state.quickBolusHistory, id: \.self) { amount in
-                    Button(formatBolusLabel(amount)) {
-                        quickBolusAmount = amount
-                        showQuickBolusConfirm = true
+            .sheet(isPresented: $showQuickBolusPicker) {
+                NavigationStack {
+                    List {
+                        Section {
+                            ForEach(state.quickBolusHistory, id: \.self) { amount in
+                                Button(formatBolusLabel(amount)) {
+                                    quickBolusAmount = amount
+                                    showQuickBolusPicker = false
+                                    showQuickBolusConfirm = true
+                                }
+                                .foregroundStyle(.primary)
+                            }
+                        } footer: {
+                            Text(String(
+                                localized: "Based on your bolus history at this time of day",
+                                comment: "Subtitle of the quick bolus picker sheet"
+                            ))
+                        }
+                    }
+                    .navigationTitle(String(localized: "Quick Bolus", comment: "Title of the quick bolus picker sheet"))
+                    .navigationBarTitleDisplayMode(.inline)
+                    .toolbar {
+                        ToolbarItem(placement: .cancellationAction) {
+                            Button(String(localized: "Cancel")) {
+                                showQuickBolusPicker = false
+                            }
+                        }
+                        ToolbarItem(placement: .topBarTrailing) {
+                            Button {
+                                showQuickBolusInfo = true
+                            } label: {
+                                Image(systemName: "questionmark.circle")
+                            }
+                        }
+                    }
+                    .sheet(isPresented: $showQuickBolusInfo) {
+                        NavigationStack {
+                            ScrollView {
+                                Text(String(
+                                    localized: "Quick Bolus looks at your manual boluses from the past 90 days and suggests the amounts you most commonly take at this time of day.\n\nIt gives more weight to boluses from similar times of day, and treats weekdays and weekends separately. Older entries gradually count less.\n\nTap a suggestion to confirm and deliver it — your normal Face ID or Touch ID approval always applies.",
+                                    comment: "Info sheet body explaining how quick bolus scoring works"
+                                ))
+                                    .padding()
+                            }
+                            .navigationTitle(String(
+                                localized: "About Quick Bolus",
+                                comment: "Info sheet title for quick bolus feature"
+                            ))
+                            .navigationBarTitleDisplayMode(.inline)
+                            .toolbar {
+                                ToolbarItem(placement: .confirmationAction) {
+                                    Button(String(localized: "Done")) {
+                                        showQuickBolusInfo = false
+                                    }
+                                }
+                            }
+                        }
+                        .presentationDetents([.medium])
                     }
                 }
-                Button(String(localized: "Cancel"), role: .cancel) {}
-            } message: {
-                Text(String(
-                    localized: "Based on your bolus history at this time of day",
-                    comment: "Subtitle of the quick bolus picker sheet"
-                ))
+                .presentationDetents([.height(CGFloat(state.quickBolusHistory.count) * 52 + 140)])
             }
             .confirmationDialog(
                 formatBolusConfirmTitle(quickBolusAmount),
@@ -1204,17 +1248,6 @@ extension Home {
                     comment: "Alert body explaining that quick bolus history is empty"
                 ))
             }
-            .alert(
-                String(localized: "About Quick Bolus", comment: "Info alert title for quick bolus feature"),
-                isPresented: $showQuickBolusInfo
-            ) {
-                Button(String(localized: "OK"), role: .cancel) {}
-            } message: {
-                Text(String(
-                    localized: "Quick Bolus looks at your manual boluses from the past 90 days and suggests the amounts you most commonly take at this time of day.\n\nIt gives more weight to boluses from similar times of day, and treats weekdays and weekends separately. Older entries gradually count less.\n\nTap a suggestion to confirm and deliver it — your normal Face ID or Touch ID approval always applies.",
-                    comment: "Info alert body explaining how quick bolus scoring works"
-                ))
-            }
         }
     }
 }