Highlighted section after an orientation change does not fit

[sdolski]

Orientation change while showing the coach mark leads to a highlighted area which does not match the desired widget anymore.

[fuddy-penguin]

I wrapped the content in a SafeArea and worked for myself.

return Scaffold( appBar: AppBar(title: Text('Friends')), body: SafeArea(child: content), floatingActionButton: _friends.isEmpty