Android builds fixed

- new icon
- fixed android icons
- fixed android status & navigation bar
- added "Splash" page

android/app/src/main/java/olcxja/miarven/MainActivity.java

@@ -1,5 +1,14 @@
 package olcxja.miarven;
 
+import android.graphics.Color;
+import android.os.Bundle;
+
 import com.getcapacitor.BridgeActivity;
 
-public class MainActivity extends BridgeActivity {}
+public class MainActivity extends BridgeActivity {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+    }
+}