Fix several bugs ahead of 2.6.1v2.6.1

FileTreeView: when wrap is OFF, activate an explicit width constraint on
the code container derived from the widest line, giving the horizontal
scroll view a defined content size. Previously the constraint was
deactivated with nothing to replace it, making horizontal scrolling
unreliable. Also set horizontalScrollView.isScrollEnabled = !wrapLines
to prevent gesture conflicts when wrap is ON.

InboxView: remove the unnecessary loadThreads() network call fired after
markAllThreadsRead(). The threads array is already updated optimistically
and read state is persisted via InboxReadStateStore, so the refetch was
redundant and caused a brief loading flash.

HomeView: add scenePhase onChange handler to refresh dashboard data when
the app returns to the foreground, matching the existing pattern in
InboxView.

DiffView: wrap DiffBlockView content in a horizontal ScrollView so long
diff lines are readable. Switch inner VStack to LazyVStack for better
performance on large diffs.

SettingsView: replace direct UserDefaults access in behaviorSection with
@AppStorage, consistent with the rest of the app.

1 files changed, 2 insertions, 9 deletions

diff --git a/Hutch/Views/Settings/SettingsView.swift b/Hutch/Views/Settings/SettingsView.swift
index e90f4e3..237c076 100644
--- a/Hutch/Views/Settings/SettingsView.swift
+++ b/Hutch/Views/Settings/SettingsView.swift
@@ -8,6 +8,7 @@ private let settingsBioMarkdownOptions = AttributedString.MarkdownParsingOptions
 struct SettingsView: View {
     @Environment(AppState.self) private var appState
     @Environment(\.colorScheme) private var colorScheme
+    @AppStorage(AppStorageKeys.swipeActionsEnabled) private var swipeActionsEnabled = true
     @State private var viewModel: SettingsViewModel?
     @State private var pendingDestructiveAction: SettingsDestructiveAction?
 
@@ -389,15 +390,7 @@ struct SettingsView: View {
     @ViewBuilder
     private func behaviorSection() -> some View {
         Section {
-            Toggle(
-                "Swipe actions",
-                isOn: Binding(
-                    get: {
-                        UserDefaults.standard.object(forKey: AppStorageKeys.swipeActionsEnabled) as? Bool ?? true
-                    },
-                    set: { UserDefaults.standard.set($0, forKey: AppStorageKeys.swipeActionsEnabled) }
-                )
-            )
+            Toggle("Swipe actions", isOn: $swipeActionsEnabled)
         } header: {
             Text("Behavior")
         } footer: {