[animations] Polish demo text and animation demo list order to match spec

packages/animations/example/lib/container_transition.dart

@@ -51,7 +51,7 @@ class _OpenContainerTransformDemoState
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(title: const Text('Container Transform')),
+      appBar: AppBar(title: const Text('Container transform')),
       body: ListView(
         padding: const EdgeInsets.all(8.0),
         children: <Widget>[
@@ -382,7 +382,7 @@ class _DetailsPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(title: const Text('Container Transform')),
+      appBar: AppBar(title: const Text('Details page')),
       body: ListView(
         children: <Widget>[
           Container(

packages/animations/example/lib/fade_scale_transition.dart

@@ -39,7 +39,7 @@ class _FadeScaleTransitionDemoState extends State<FadeScaleTransitionDemo>
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Fade Transition Demo'),
+        title: const Text('Fade'),
       ),
       floatingActionButton: AnimatedBuilder(
         animation: _controller,

packages/animations/example/lib/fade_through_transition.dart

@@ -24,7 +24,7 @@ class _FadeThroughTransitionDemoState extends State<FadeThroughTransitionDemo> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(title: const Text('Fade Through Transition')),
+      appBar: AppBar(title: const Text('Fade through')),
       body: PageTransitionSwitcher(
         transitionBuilder: (
           Widget child,

packages/animations/example/lib/main.dart

@@ -45,39 +45,39 @@ class _TransitionsHomePageState extends State<_TransitionsHomePage> {
             child: ListView(
               children: <Widget>[
                 _TransitionListTile(
-                  title: 'Shared Axis',
-                  subtitle: 'SharedAxisTransition',
+                  title: 'Container transform',
+                  subtitle: 'OpenContainer',
                   onTap: () {
                     Navigator.of(context).push(
                       MaterialPageRoute<void>(
                         builder: (BuildContext context) {
-                          return SharedAxisTransitionDemo();
+                          return OpenContainerTransformDemo();
                         },
                       ),
                     );
                   },
                 ),
                 _TransitionListTile(
-                  title: 'Fade Through',
-                  subtitle: 'FadeThroughTransition',
+                  title: 'Shared axis',
+                  subtitle: 'SharedAxisTransition',
                   onTap: () {
                     Navigator.of(context).push(
                       MaterialPageRoute<void>(
                         builder: (BuildContext context) {
-                          return FadeThroughTransitionDemo();
+                          return SharedAxisTransitionDemo();
                         },
                       ),
                     );
                   },
                 ),
                 _TransitionListTile(
-                  title: 'Container Transform',
-                  subtitle: 'OpenContainer',
+                  title: 'Fade through',
+                  subtitle: 'FadeThroughTransition',
                   onTap: () {
                     Navigator.of(context).push(
                       MaterialPageRoute<void>(
                         builder: (BuildContext context) {
-                          return OpenContainerTransformDemo();
+                          return FadeThroughTransitionDemo();
                         },
                       ),
                     );

packages/animations/example/lib/shared_axis_transition.dart

@@ -34,7 +34,7 @@ class _SharedAxisTransitionDemoState extends State<SharedAxisTransitionDemo> {
   Widget build(BuildContext context) {
     return Scaffold(
       resizeToAvoidBottomInset: false,
-      appBar: AppBar(title: const Text('Shared Axis Transition')),
+      appBar: AppBar(title: const Text('Shared axis')),
       body: SafeArea(
         child: Column(
           children: <Widget>[