Initial implementation of AccountSettings. (#6275)

* Make the UserPreference macro also generate an accessor for the key name.

* Initial implementation of AccountSettings.

- Add an AccountUserDefaults storage with a userID prefix on the key.
- Migrate the 2 values reset by AppSettings.resetSessionSpecificSettings to AccountSettings.

* Rename UserSettings.volatile() to UserSettings.mock()

Given it now has a userID parameter with a default value..

ElementX/Sources/Application/Settings/AppSettings.swift

@@ -69,12 +69,6 @@ final nonisolated class AppSettings: @unchecked Sendable {
         store.reset()
     }
     
-    func resetSessionSpecificSettings() {
-        MXLog.warning("Resetting the user session specific AppSettings.")
-        resetHasRunIdentityConfirmationOnboarding()
-        resetSearchBreadcrumbs()
-    }
-    
     // MARK: - Hooks
     
     // swiftlint:disable:next function_parameter_count
@@ -338,9 +332,6 @@ final nonisolated class AppSettings: @unchecked Sendable {
     @UserPreference(defaultValue: false)
     var hasRunNotificationPermissionsOnboarding: Bool
     
-    @UserPreference(defaultValue: false)
-    var hasRunIdentityConfirmationOnboarding: Bool
-    
     @UserPreference(defaultValue: false)
     var hasRequestedLocationAlwaysLocationAuthorization: Bool
     
@@ -363,12 +354,6 @@ final nonisolated class AppSettings: @unchecked Sendable {
     @UserPreference(defaultValue: true)
     var showAllRoomListActivity: Bool
     
-    // MARK: - Search Screen
-    
-    /// The queries the user searched for and the rooms they opened from the results, most recent first.
-    @UserPreference(defaultValue: [SearchBreadcrumb]())
-    var searchBreadcrumbs: [SearchBreadcrumb]
-    
     // MARK: - Room Screen
     
     @UserPreference(defaultValue: AppBuildType.current == .debug)
@@ -482,6 +467,10 @@ final nonisolated class AppSettings: @unchecked Sendable {
         self.store = store
     }
     
+    func userSettings(for userID: String) -> UserSettings {
+        UserSettings(appSettings: self, accountSettings: .init(userID: userID, store: store))
+    }
+    
     static func volatile() -> AppSettings {
         AppSettings(store: VolatileUserDefaults())
     }