Fix blank screen before first load

mih_ui/android/gradle.properties

@@ -1,3 +1,7 @@
 org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
 android.useAndroidX=true
 android.enableJetifier=true
+# This builtInKotlin flag was added automatically by Flutter migrator
+android.builtInKotlin=false
+# This newDsl flag was added automatically by Flutter migrator
+android.newDsl=false

mih_ui/lib/main_dev.dart

@@ -42,7 +42,6 @@ void main() async {
     debugPrint('APP INSTALLED!');
   });
   final GoRouter appRouter = MihGoRouter().mihRouter;
-  FlutterNativeSplash.remove();
   runApp(MzansiInnovationHub(
     router: appRouter,
   ));

mih_ui/lib/main_prod.dart

@@ -33,8 +33,7 @@ void main() async {
     debugPrint('APP INSTALLED!');
   });
   final GoRouter appRouter = MihGoRouter().mihRouter;
-  FlutterNativeSplash.remove();
-  runApp(MzansiInnovationHub(
+  (MzansiInnovationHub(
     router: appRouter,
   ));
 }

mih_ui/lib/mih_config/mih_go_router.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_native_splash/flutter_native_splash.dart';
 import 'package:go_router/go_router.dart';
 import 'package:mzansi_innovation_hub/mih_packages/mih_file_viewer/components/mih_print_prevew.dart';
 import 'package:mzansi_innovation_hub/mih_objects/arguments.dart';
@@ -85,6 +86,7 @@ class MihGoRouter {
       ];
       KenLogger.success(
           "Redirect Check: ${state.fullPath}, isUserSignedIn: $isUserSignedIn");
+      FlutterNativeSplash.remove();
       if (!isUserSignedIn && !unauthenticatedPaths.contains(state.fullPath)) {
         return MihGoRouterPaths.mihAuthentication;
       }