Feature/add native send keyboard enter

[dworik]

Issue #2748

Contents

Implements SendKeyboardEnter() function for mobile platform (currently only android waiting for #3003 to close) that sends Enter action for currently focused input. On android it uses native UiDevice.pressEnter().

Test plan

• dev/e2e_app/patrol_test/mobile_keyboard_enter_test.dart - tests pressing enter on all available keyboard types on given device.

CI

• test android emulator webview expected to fail
• patrol_finders check semver expected to fail

[gemini-code-assist]

Code Review

This pull request adds a sendKeyboardEnter method to MobileAutomator to simulate native keyboard enter actions, implemented for Android and stubbed for iOS. It also introduces a new E2E test and a sample screen with multiple text fields. PatrolTester.enterText was updated to unregister testTextInput and clear focus after entry, which is identified as a potential breaking change requiring documentation or configuration. Further feedback includes correcting a typo in the changelog and adding assertions to the new E2E test to verify that the onSubmitted callback is triggered.

[mateuszwojtczak]

Nitpick: I think we prefer to start commit messages with imperative form, e.g. "Fix typo" instead of "Fixed typo". Also we'd start with a capital letter.