refactor(neon_framework): rename credentials password to appPassowrd

[Leptopoda]

As discussed in the initial account_repository PR (#2403 (comment)).

[provokateurin]

loginName and username can not be mixed and we need both.

[Leptopoda]

I just dropped the login name change and will fix that in the UserDetails bloc refactor.

[codecov]

Codecov Report

Attention: Patch coverage is 95.83333% with 1 line in your changes missing coverage. Please review.

Project coverage is 30.26%. Comparing base (801599c) to head (5addca0).
Report is 15 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/neon_framework/lib/src/widgets/error.dart	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2488      +/-   ##
==========================================
- Coverage   30.29%   30.26%   -0.03%     
==========================================
  Files         352      352              
  Lines      124389   124320      -69     
==========================================
- Hits        37680    37631      -49     
+ Misses      86709    86689      -20     

Flag	Coverage Δ		*Carryforward flag
account_repository	98.76% <100.00%> (-0.01%)	⬇️
cookie_store	99.48% <ø> (ø)		Carriedforward from 801599c
dashboard_app	96.05% <ø> (ø)
dynamite	31.08% <ø> (ø)		Carriedforward from 801599c
dynamite_end_to_end_test	61.69% <ø> (ø)		Carriedforward from 801599c
dynamite_runtime	85.40% <ø> (ø)		Carriedforward from 801599c
neon_dashboard	96.05% <ø> (ø)		Carriedforward from 801599c
neon_framework	57.07% <75.00%> (-0.03%)	⬇️
neon_http_client	96.69% <ø> (ø)		Carriedforward from 801599c
neon_notifications	100.00% <ø> (ø)		Carriedforward from 801599c
neon_talk	99.45% <ø> (ø)		Carriedforward from 801599c
nextcloud	25.88% <ø> (-0.03%)	⬇️	Carriedforward from 801599c
notifications_app	100.00% <ø> (ø)
sort_box	90.90% <ø> (ø)		Carriedforward from 801599c
talk_app	99.09% <100.00%> (ø)

*This pull request uses carry forward flags. Click here to find out more.

Files with missing lines	Coverage Δ
...es/neon_framework/lib/src/testing/mock_server.dart	90.00% <ø> (ø)
packages/neon_framework/lib/src/testing/mocks.dart	92.30% <ø> (ø)
...mework/lib/src/utils/account_client_extension.dart	100.00% <100.00%> (ø)
...account_repository/lib/src/account_repository.dart	100.00% <100.00%> (ø)
...ges/account_repository/lib/src/models/account.dart	100.00% <ø> (ø)
...account_repository/lib/src/models/credentials.dart	100.00% <ø> (ø)
...count_repository/lib/src/models/credentials.g.dart	100.00% <100.00%> (ø)
...count_repository/lib/src/models/login_qr_code.dart	100.00% <100.00%> (ø)
...epository/lib/src/testing/testing_credentials.dart	100.00% <100.00%> (ø)
..._repository/lib/src/utils/http_client_builder.dart	100.00% <100.00%> (ø)
... and 2 more

... and 2 files with indirect coverage changes