Kostia Sokolovskyi 9230b0e820

Add tests for character_activator.0.dart API example. (#147384) ...

This PR contributes to https://github.com/flutter/flutter/issues/130459

### Description
- Adds `examples/api/lib/widgets/shortcuts/character_activator.0.dart` test
- Fixes the description of the `examples/api/lib/widgets/shortcuts/character_activator.0.dart` example

2024-04-26 22:26:14 +00:00

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callback_shortcuts.0.dart

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character_activator.0_test.dart

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