ios: restore db (#1063)

* wip

* wip

* wip

* refactor

* clean up

* simplify

* simplify

* refactor

* rename

* rename consts

* refactor

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

apps/ios/Shared/Model/SimpleXAPI.swift

@@ -663,6 +663,10 @@ func initializeChat(start: Bool, dbKey: String? = nil) throws {
     let m = ChatModel.shared
     (m.chatDbEncrypted, m.chatDbStatus) = migrateChatDatabase(dbKey)
     if  m.chatDbStatus != .ok { return }
+    // If we migrated successfully means previous re-encryption process on database level finished successfully too
+    if encryptionStartedDefault.get() {
+        encryptionStartedDefault.set(false)
+    }
     let _ = getChatCtrl(dbKey)
     try apiSetFilesFolder(filesFolder: getAppFilesDirectory().path)
     try apiSetIncognito(incognito: incognitoGroupDefault.get())