🐛 [firebase_ui_auth] Displayed error messages should be for the user and not the developer

Bug report

Describe the bug On entering an incorrect phone login code, SMSCodeInputScreen shows a message telling the developer what to do rather than the end user.

Steps to reproduce

Steps to reproduce the behavior:

Create a login with phone provider as shown in the firebase_ui_auth example and launch the app
Enter a valid/test phone number on the phone input screen and click Next
Enter an invalid code on code input screen and click Next
The displayed error message tells the developer what to do

sms code error

Expected behavior

A user message e.g. 'Invalid code'

Additional context

Developer messages should not be displayed in any scenario, not just this one

Flutter doctor

Run flutter doctor and paste the output below:

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``` [√] Flutter (Channel stable, 3.3.10, on Microsoft Windows [Version 10.0.19045.2364], locale en-US) [√] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1) [√] Chrome - develop for the web [X] Visual Studio - develop for Windows X Visual Studio not installed; this is necessary for Windows development. Download at https://visualstudio.microsoft.com/downloads/. Please install the "Desktop development with C++" workload, including all of its default components [√] Android Studio (version 2021.2) [√] VS Code (version 1.63.2) [√] Connected device (3 available) [√] HTTP Host Availability ! Doctor found issues in 1 category. ```

Flutter dependencies

Run flutter pub deps -- --style=compact and paste the output below:

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``` Dart SDK 2.18.6 Flutter SDK 3.3.10 testapp 1.0.0+1 dependencies: - cloud_firestore 4.3.0 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta] - cupertino_icons 1.0.5 - firebase_auth 4.2.3 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta] - firebase_core 2.4.0 [firebase_core_platform_interface firebase_core_web flutter meta] - firebase_ui_auth 1.1.5 [email_validator firebase_auth firebase_core firebase_dynamic_links firebase_ui_localizations firebase_ui_oauth flutter flutter_localizations flutter_svg] - flutter 0.0.0 [characters collection material_color_utilities meta vector_math sky_engine] - go_router 6.0.0 [collection flutter flutter_web_plugins logging meta] dev dependencies: - flutter_lints 2.0.1 [lints] - flutter_test 0.0.0 [flutter test_api path fake_async clock stack_trace vector_math async boolean_selector characters collection matcher material_color_utilities meta source_span stre am_channel string_scanner term_glyph] transitive dependencies: - _flutterfire_internals 1.0.11 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta] - async 2.9.0 [collection meta] - boolean_selector 2.1.0 [source_span string_scanner] - characters 1.2.1 - clock 1.1.1 - cloud_firestore_platform_interface 5.10.0 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface] - cloud_firestore_web 3.2.0 [_flutterfire_internals cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins js] - collection 1.16.0 - crypto 3.0.2 [typed_data] - desktop_webview_auth 0.0.11 [crypto flutter http flutter_web_plugins plugin_platform_interface] - email_validator 2.1.17 - fake_async 1.3.1 [clock collection] - firebase_auth_platform_interface 6.11.6 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface] - firebase_auth_web 5.2.3 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser intl js meta] - firebase_core_platform_interface 4.5.2 [collection flutter flutter_test meta plugin_platform_interface] - firebase_core_web 2.0.2 [firebase_core_platform_interface flutter flutter_web_plugins js meta] - firebase_dynamic_links 5.0.10 [firebase_core firebase_core_platform_interface firebase_dynamic_links_platform_interface flutter meta plugin_platform_interface] - firebase_dynamic_links_platform_interface 0.2.3+25 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface] - firebase_ui_localizations 1.0.2 [flutter flutter_localizations intl path] - firebase_ui_oauth 1.1.5 [desktop_webview_auth firebase_auth firebase_ui_auth flutter_svg flutter] - flutter_localizations 0.0.0 [flutter intl characters clock collection material_color_utilities meta path vector_math] - flutter_svg 1.1.6 [flutter meta path_drawing vector_math xml] - flutter_web_plugins 0.0.0 [flutter js characters collection material_color_utilities meta vector_math] - http 0.13.5 [async http_parser meta path] - http_parser 4.0.2 [collection source_span string_scanner typed_data] - intl 0.17.0 [clock path] - js 0.6.4 - lints 2.0.1 - logging 1.1.0 - matcher 0.12.12 [stack_trace] - material_color_utilities 0.1.5 - meta 1.8.0 - path 1.8.2 - path_drawing 1.0.1 [vector_math meta path_parsing flutter] - path_parsing 1.0.1 [vector_math meta] - petitparser 5.1.0 [meta] - plugin_platform_interface 2.1.3 [meta] - sky_engine 0.0.99 - source_span 1.9.0 [collection path term_glyph] - stack_trace 1.10.0 [path] - stream_channel 2.1.0 [async] - string_scanner 1.1.1 [source_span] - term_glyph 1.2.1 - test_api 0.4.12 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph matcher] - typed_data 1.3.1 [collection] - vector_math 2.1.2 - xml 6.1.0 [collection meta petitparser] ```

firebase / FirebaseUI-Flutter