Autofill added for recovery key in onboarding.

[anisha-e10]

This PR introduces two key improvements to the onboarding experience:

1. Autofill Support for Recovery Key
2. UI Fix: Hide Indicator When Keyboard is Open

🔧 Changes

1. Autofill for Recovery Key

• Enables integration with the system’s default password manager like login and registration, users are prompted to save the recovery key via their password manager.

2. Hide Indicator on Keyboard Open

• In the onboarding screen, the visual indicator is now hidden when the on-screen keyboard appears.
• This prevents layout overlap and improves clarity for users interacting with input fields.

Reference image:

Reference video :

Screen.Recording.2025-05-20.at.11.59.25.AM.mov

Reference video (Hide indicator while keyboard is open):

Screen.Recording.2025-05-20.at.12.28.25.PM.mov

[codecov]

Codecov Report

Attention: Patch coverage is 25.54348% with 137 lines in your changes missing coverage. Please review.

Project coverage is 41.84%. Comparing base (b2af114) to head (e30f972).
Report is 35 commits behind head on main.

Files with missing lines	Patch %	Lines
app/lib/features/showcases/routes.dart	0.00%	46 Missing ⚠️
.../features/showcases/pages/one_step_onboarding.dart	0.00%	35 Missing ⚠️
...b/features/showcases/pages/showcase_list_page.dart	0.00%	21 Missing ⚠️
...atures/onboarding/pages/encrption_backup_page.dart	63.63%	16 Missing ⚠️
...ckup_feature/widgets/encryption_backup_widget.dart	0.00%	5 Missing ⚠️
...eatures/analytics/pages/analytics_opt_in_page.dart	20.00%	4 Missing ⚠️
app/lib/features/auth/pages/login_page.dart	0.00%	3 Missing ⚠️
app/lib/features/home/pages/dashboard.dart	0.00%	3 Missing ⚠️
...lib/features/onboarding/pages/onboarding_page.dart	84.21%	3 Missing ⚠️
...pp/lib/router/shell_routers/home_shell_router.dart	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2990      +/-   ##
==========================================
- Coverage   41.84%   41.84%   -0.01%     
==========================================
  Files         887      891       +4     
  Lines       55911    56091     +180     
==========================================
+ Hits        23395    23470      +75     
- Misses      32516    32621     +105     

Flag	Coverage Δ
integration-test	50.35% <ø> (+0.09%)	⬆️
unittest	31.35% <25.54%> (-0.01%)	⬇️

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[gnunicorn]

@anisha-e10 so will this only work if the user clicked into any of the fields? I doubt that they will be doing that .... can we auto-focus so they don't have to click?

and there is no way we can just close the keyboard again if they click it? It seems pointless to have it shown at all, though we "need" it for the emulation, I'd rather not have the user distracted by it too much...

[anisha-e10]

@anisha-e10 so will this only work if the user clicked into any of the fields? I doubt that they will be doing that .... can we auto-focus so they don't have to click?

@gnunicorn Here, how the autofocus will work

Screen.Recording.2025-05-20.at.5.41.16.PM.mov