check for internet before starting a mp game to avoid freeze (#6679)

* Fixed issue #6649 by checking for internet connection before starting the game if "online multiplayer" is selected
Many thanks to SomeTroglodyte for most of the code and for explanations

* check for internet before starting a mp game to avoid freeze

Fixed issue #6649 by checking for internet connection before starting the game if "online multiplayer" is selected.

Many thanks to SomeTroglodyte for most of the code and for explanations. A slight modification has been done to the code to catch an error caused by InetAddress

* Revert "Merge remote-tracking branch 'origin/master-noInternet' into master-noInternet"

This reverts commit bd6474b50d, reversing
changes made to f52ad60b51.

android/src/com/unciv/app/AndroidLauncher.kt

@@ -35,15 +35,15 @@ open class AndroidLauncher : AndroidApplication() {
         val fontFamily = settings.fontFamily
 
         // Manage orientation lock
-        val limitOrientationsHelper = LimitOrientationsHelperAndroid(this)
-        limitOrientationsHelper.allowPortrait(settings.allowAndroidPortrait)
+        val platformSpecificHelper = PlatformSpecificHelpersAndroid(this)
+        platformSpecificHelper.allowPortrait(settings.allowAndroidPortrait)
 
         val androidParameters = UncivGameParameters(
             version = BuildConfig.VERSION_NAME,
             crashReportSysInfo = CrashReportSysInfoAndroid,
             fontImplementation = NativeFontAndroid(Fonts.ORIGINAL_FONT_SIZE.toInt(), fontFamily),
             customSaveLocationHelper = customSaveLocationHelper,
-            limitOrientationsHelper = limitOrientationsHelper
+            platformSpecificHelper = platformSpecificHelper
         )
 
         game = UncivGame(androidParameters)