## Description

This adds links to examples that were not linked anywhere.

## Related Issues
 - Fixes #129956

## Tests
 - Documentation only change

Similar to what was done on https://github.com/flutter/flutter/pull/127198, look for the closest navigator instead of screen size.

Fixes: https://github.com/flutter/flutter/issues/128344

Fixes #126551

This PR is to add `onSubmitted` property to `SearchBar`.

## Description

This improves defaults generation with logging, stats, and token validation. 

This PR includes these changes:
* introduce `TokenLogger`, with a verbose mode
  * prints versions and tokens usage to the console
  * outputs `generated/used_tokens.csv`, a list of all used tokens, for use by Google
* find token files in `data` automatically
* hide tokens `Map`
  * tokens can be obtained using existing resolvers (e.g. `color`, `shape`), or directly through `getToken`.
  * tokens can be checked for existence with `tokenAvailable`
* remove version from template, since the tokens are aggregated and multiple versions are possible (as is the case currently), it does not make sense to attribute a single version
* improve documentation

## Related Issues
 - Fixes https://github.com/flutter/flutter/issues/122602

## Tests
 - Added tests for `TokenLogger`
 - Regenerated tokens, no-op except version removal

## Future work
A future PR should replace or remove the following invalid tokens usages

<img width="578" alt="image" src="https://github.com/flutter/flutter/assets/6655696/b6f9e5a7-523f-4f72-94f9-1b0bf4cc9f00">

Fixes #127092

This fix can solve the alignment issue in `SearchBar` but we still need to investigate the root cause for the `TextField`. The 
text baseline of `TextField` doesn't change when the height is less than 48 and greater than 40. The problem should be related to the `minContainerHeight` which is 48 by default but the `contentHeight` has become smaller than this min value already. Setting `isDense`/`isCollapsed` to true gives the `minContainerHeight` a smaller number which is 0.0: https://github.com/flutter/flutter/blob/ff33555b239de4c17e7149db17eb70bcf5dee215/packages/flutter/lib/src/material/input_decorator.dart#L1086

Since [`isDense`](https://github.com/flutter/flutter/blob/ff33555b239de4c17e7149db17eb70bcf5dee215/packages/flutter/lib/src/material/input_decorator.dart#L3907) is used for the case where the text field has less vertical space, I just use this property in SearchBar.

https://github.com/flutter/flutter/assets/36861262/6ddc8e90-1b47-4dd5-9a57-59b86cafec6d

This is a demo to show the text baseline that doesn't change when we set the text field height under 48.
https://github.com/flutter/flutter/assets/36861262/ce2ee815-f1f5-493a-930e-0540a627bec8

This PR is to fix the position of `SearchAnchor` when used with nested navigator. This solution is based on what `DropdownButton` internally do, looking to the closest `Navigator` to proper calculate the where to render `SearchViewRoute`.

Fixes: https://github.com/flutter/flutter/issues/126435

<details>
<summary>Test case</summary>

```dart
void main() => runApp(const NestedSearchBarApp());

class NestedSearchBarApp extends StatefulWidget {
  const NestedSearchBarApp({super.key});

  @override
  State<NestedSearchBarApp> createState() => _NestedSearchBarAppState();
}

class _NestedSearchBarAppState extends State<NestedSearchBarApp> {
  final SearchController controller = SearchController();

  @override
  Widget build(BuildContext context) {
    final ThemeData themeData = ThemeData(useMaterial3: true);

    return MaterialApp(
      theme: themeData,
      builder: (BuildContext context, Widget? child) {
        return Scaffold(
          body: Row(
            children: <Widget>[
              NavigationRail(
                selectedIndex: 1,
                destinations: const <NavigationRailDestination>[
                  NavigationRailDestination(
                    icon: Icon(Icons.favorite_border),
                    selectedIcon: Icon(Icons.favorite),
                    label: Text('First'),
                  ),
                  NavigationRailDestination(
                    icon: Icon(Icons.bookmark_border),
                    selectedIcon: Icon(Icons.book),
                    label: Text('Second'),
                  ),
                ],
              ),
              const VerticalDivider(thickness: 1, width: 1),
              Expanded(child: child!)
            ],
          ),
        );
      },
      home: Scaffold(
        appBar: AppBar(title: const Text('Search Anchor Sample')),
        body: Column(
          children: <Widget>[
            SearchAnchor(
                searchController: controller,
                builder: (BuildContext context, SearchController controller) {
                  return IconButton(
                    icon: const Icon(Icons.search),
                    onPressed: () {
                      controller.openView();
                    },
                  );
                },
                suggestionsBuilder:
                    (BuildContext context, SearchController controller) {
                  return List<ListTile>.generate(5, (int index) {
                    final String item = 'item $index';
                    return ListTile(
                      title: Text(item),
                      onTap: () {
                        setState(() {
                          controller.closeView(item);
                        });
                      },
                    );
                  });
                }),
            Center(
              child: controller.text.isEmpty
                  ? const Text('No item selected')
                  : Text('Selected item: ${controller.value.text}'),
            ),
          ],
        ),
      ),
    );
  }
}
```
</details>

<details>
<summary>Before fix:</summary>

![Screenshot 2023-05-19 at 11 55 53](https://github.com/flutter/flutter/assets/38299943/c86747e5-6716-4e87-b3fd-ce7f0f943b92)
</details>

<details>
<summary>After fix:</summary>

![Screenshot 2023-05-19 at 11 53 30](https://github.com/flutter/flutter/assets/38299943/d790ee49-e047-485c-87f4-7254acbdddfa)
</details>

Fixes #126590

This PR is to clip the view content when the view size is not big enough, such as during animation.
Also removes some unused properties in `_ViewContent` class: `getRect` and `viewConstraints`

Fixes #124426

This PR is to make the search view shape clip the view content.

Before: the highlight and the "i" of "item 9" are not clipped by the shape.

<img width="350" alt="Screenshot 2023-04-19 at 12 09 48 PM" src="https://user-images.githubusercontent.com/36861262/233201222-468820a9-8717-4b6c-8528-8125a40fc161.png">

After:

<img width="350" alt="Screenshot 2023-04-19 at 2 13 52 PM" src="https://user-images.githubusercontent.com/36861262/233201609-81f5a942-2390-4081-a9c7-c9523a7f9e72.png">

This PR is to: 
* Update API doc for `SearchBar`.
* Add an example to show how to use a `SearchBar` as the builder of the `SearchAnchor`.