fix(mobile): isolate auth to app instance

Credentials are currently shared for the whole app group, which causes
debug, test flight and release versions to conflict with each other.
This results in really weird behaviour like one instance of the app
acknowledging syncs which the other instances aren't aware of.

mobile/ios/Runner/Core/NetworkApiImpl.swift

@@ -88,8 +88,8 @@ class NetworkApiImpl: NetworkApi {
       }
     }
 
-    if headers != UserDefaults.group.dictionary(forKey: HEADERS_KEY) as? [String: String] {
-      UserDefaults.group.set(headers, forKey: HEADERS_KEY)
+    if headers != UserDefaults.standard.dictionary(forKey: HEADERS_KEY) as? [String: String] {
+      UserDefaults.standard.set(headers, forKey: HEADERS_KEY)
       URLSessionManager.shared.recreateSession()
     }
   }

mobile/ios/Runner/Core/URLSessionManager.swift

@@ -4,7 +4,6 @@ import native_video_player
 let CLIENT_CERT_LABEL = "app.alextran.immich.client_identity"
 let HEADERS_KEY = "immich.request_headers"
 let SERVER_URLS_KEY = "immich.server_urls"
-let APP_GROUP = "group.app.immich.share"
 let COOKIE_EXPIRY_DAYS: TimeInterval = 400
 
 enum AuthCookie: CaseIterable {
@@ -28,10 +27,6 @@ enum AuthCookie: CaseIterable {
   static let names: Set<String> = Set(allCases.map(\.name))
 }
 
-extension UserDefaults {
-  static let group = UserDefaults(suiteName: APP_GROUP)!
-}
-
 /// Manages a shared URLSession with SSL configuration support.
 /// Old sessions are kept alive by Dart's FFI retain until all isolates release them.
 class URLSessionManager: NSObject {
@@ -55,7 +50,7 @@ class URLSessionManager: NSObject {
     let version = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as? String ?? "unknown"
     return "Immich_iOS_\(version)"
   }()
-  static let cookieStorage = HTTPCookieStorage.sharedCookieStorage(forGroupContainerIdentifier: APP_GROUP)
+  static let cookieStorage = HTTPCookieStorage.shared
   private static var serverUrls: [String] = []
   private static var isSyncing = false
 
@@ -67,7 +62,7 @@ class URLSessionManager: NSObject {
     delegate = URLSessionManagerDelegate()
     session = Self.buildSession(delegate: delegate)
     super.init()
-    Self.serverUrls = UserDefaults.group.stringArray(forKey: SERVER_URLS_KEY) ?? []
+    Self.serverUrls = UserDefaults.standard.stringArray(forKey: SERVER_URLS_KEY) ?? []
     NotificationCenter.default.addObserver(
       Self.self,
       selector: #selector(Self.cookiesDidChange),
@@ -83,7 +78,7 @@ class URLSessionManager: NSObject {
   static func setServerUrls(_ urls: [String]) {
     guard urls != serverUrls else { return }
     serverUrls = urls
-    UserDefaults.group.set(urls, forKey: SERVER_URLS_KEY)
+    UserDefaults.standard.set(urls, forKey: SERVER_URLS_KEY)
     syncAuthCookies()
   }
 
@@ -151,7 +146,7 @@ class URLSessionManager: NSObject {
     config.httpMaximumConnectionsPerHost = 64
     config.timeoutIntervalForRequest = 60
 
-    var headers = UserDefaults.group.dictionary(forKey: HEADERS_KEY) as? [String: String] ?? [:]
+    var headers = UserDefaults.standard.dictionary(forKey: HEADERS_KEY) as? [String: String] ?? [:]
     headers["User-Agent"] = headers["User-Agent"] ?? userAgent
     config.httpAdditionalHeaders = headers