ios: network observer (#3996)

* ios: network observer

* update

* remove metered

* update tcpTimeoutPerKb

* network connection in settings

---------

Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>

apps/ios/Shared/Model/SimpleXAPI.swift

@@ -534,6 +534,12 @@ func setNetworkConfig(_ cfg: NetCfg, ctrl: chat_ctrl? = nil) throws {
     throw r
 }
 
+func apiSetNetworkInfo(_ networkInfo: UserNetworkInfo) throws {
+    let r = chatSendCmdSync(.apiSetNetworkInfo(networkInfo: networkInfo))
+    if case .cmdOk = r { return }
+    throw r
+}
+
 func reconnectAllServers() async throws {
     try await sendCommandOkResp(.reconnectAllServers)
 }
@@ -1297,6 +1303,7 @@ func initializeChat(start: Bool, confirmStart: Bool = false, dbKey: String? = ni
     defer { m.ctrlInitInProgress = false }
     (m.chatDbEncrypted, m.chatDbStatus) = chatMigrateInit(dbKey, confirmMigrations: confirmMigrations)
     if  m.chatDbStatus != .ok { return }
+    NetworkObserver.shared.restartMonitor()
     // If we migrated successfully means previous re-encryption process on database level finished successfully too
     if encryptionStartedDefault.get() {
         encryptionStartedDefault.set(false)