feat(neon_framework): add neon_storage library

[Leptopoda]

We talked about it a lot, and it's finally here.
The neon_storage package does not depend on any platform plugin, thus it's 100% dart only. This would also allow our repositories to not depend on flutter for testing.

Long term, I'd like the custom storage magic to be removed and every storage component to use a custom table.
I already have a branch for the account_repository that I can share if that helps you understand this PR.

This also moves the entire platform selection logic into the package so it can be used separately.

[codecov]

Codecov Report

Attention: Patch coverage is 94.66667% with 4 lines in your changes missing coverage. Please review.

Project coverage is 28.56%. Comparing base (116219f) to head (db04e40).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...rk/packages/neon_storage/lib/src/sqlite/table.dart	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2487      +/-   ##
==========================================
+ Coverage   28.52%   28.56%   +0.03%     
==========================================
  Files         355      359       +4     
  Lines      136003   136078      +75     
==========================================
+ Hits        38794    38865      +71     
- Misses      97209    97213       +4     

Flag	Coverage Δ		*Carryforward flag
account_repository	98.76% <ø> (ø)
cookie_store	99.48% <ø> (ø)		Carriedforward from 116219f
dashboard_app	96.05% <ø> (ø)
dynamite	31.05% <ø> (ø)		Carriedforward from 116219f
dynamite_end_to_end_test	61.69% <ø> (ø)		Carriedforward from 116219f
dynamite_runtime	85.40% <ø> (ø)		Carriedforward from 116219f
interceptor_http_client	97.18% <ø> (ø)		Carriedforward from 116219f
neon_dashboard	96.05% <ø> (ø)		Carriedforward from 116219f
neon_framework	59.27% <ø> (ø)
neon_http_client	97.50% <ø> (ø)		Carriedforward from 116219f
neon_notifications	100.00% <ø> (ø)		Carriedforward from 116219f
neon_storage	94.66% <94.66%> (?)
neon_talk	99.45% <ø> (ø)		Carriedforward from 116219f
nextcloud	24.26% <ø> (ø)		Carriedforward from 116219f
notifications_app	97.40% <ø> (ø)
sort_box	90.90% <ø> (ø)		Carriedforward from 116219f
talk_app	98.94% <ø> (ø)

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

Files with missing lines	Coverage Δ
...n_storage/lib/src/sqlite/_io_database_factory.dart	100.00% <100.00%> (ø)
...on_storage/lib/src/sqlite/database_path_utils.dart	100.00% <100.00%> (ø)
...n_storage/lib/src/sqlite/multi_table_database.dart	100.00% <100.00%> (ø)
...rk/packages/neon_storage/lib/src/sqlite/table.dart	0.00% <0.00%> (ø)

[Leptopoda]

I rebased it onto main and dropped the neon_framework migration.
This should make it easier to review.

[provokateurin]

LGTM, just a few suggestions.

[provokateurin]

Can you also add the verifyNever() after each verify() (except for cases with no arguments)?

[Leptopoda]

Can you also add the verifyNever() after each verify() (except for cases with no arguments)?

The teardown will now check that all calls are covered by a verify. I see this as redundant.
I'll change the use of equals.

[provokateurin]

The teardown will now check that all calls are covered by a verify. I see this as redundant.

I missed that 👍