Fixes, Android adaptive icon for crypto.

lib/screens/faq.dart

@@ -22,6 +22,8 @@ class EntryItem extends StatelessWidget {
   const EntryItem(this.entry);
   final Entry entry;
 
+  bool isAutomaticallyImplyLeading() => true;
+
   Widget _buildTiles(BuildContext context, Entry root) {
     EdgeInsets margin = new EdgeInsets.only(left: 20.0, right: 20.0);
     TextStyle titleStyle = Theme.of(context).textTheme.button.copyWith(