feat(notifications_push_repository): Init

[provokateurin]

#577
Depends on #2407 (due to an ugly cyclic dependency)

The framework part can probably be improved, but I just wanted to put out the repository so it can get reviewed.

The repository now handles all possible things that could go wrong and retries registering at UnifiedPush or Nextcloud if necessary. This should make push notifications super reliable and usable.

[provokateurin]

Also makes it possible to implement #213 later.

[Leptopoda]

Should we land the repository and the migration changes in separate PRs?
Maybe we can land both into a temporary branch that we then merge once both are reviewed.

Both commits are already huge to begin with.

[provokateurin]

Hm if we only have 2 PRs I'd say just merge the repository into main and then later the refactor.
A special branch is not really necessary as there are no incremental changes that need to be merged together into main (the repository is standalone after all).

[provokateurin]

I removed the framework commit and pushed it to a separate branch. Once merged I'll open a new PR for that.

[provokateurin]

I rebased this, but while testing I found an error with the push subscription registration.
You can already review this, but I will have to look the problem so expect some (hopefully minor) changes.

[codecov]

Codecov Report

Attention: Patch coverage is 96.78899% with 7 lines in your changes missing coverage. Please review.

Project coverage is 28.66%. Comparing base (5714554) to head (29f6a4b).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...es/neon_framework/lib/src/storage/persistence.dart	0.00%	2 Missing ⚠️
...neon_framework/lib/src/storage/settings_store.dart	0.00%	2 Missing ⚠️
...repository/lib/src/models/push_subscription.g.dart	96.72%	2 Missing ⚠️
...ository/lib/src/notifications_push_repository.dart	98.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2482      +/-   ##
==========================================
+ Coverage   28.56%   28.66%   +0.10%     
==========================================
  Files         359      366       +7     
  Lines      136078   136296     +218     
==========================================
+ Hits        38865    39076     +211     
- Misses      97213    97220       +7     

Flag	Coverage Δ		*Carryforward flag
account_repository	98.76% <ø> (ø)
cookie_store	99.48% <ø> (ø)		Carriedforward from 5714554
dashboard_app	96.05% <ø> (ø)
dynamite	31.05% <ø> (ø)		Carriedforward from 5714554
dynamite_end_to_end_test	61.69% <ø> (ø)		Carriedforward from 5714554
dynamite_runtime	85.40% <ø> (ø)		Carriedforward from 5714554
interceptor_http_client	97.18% <ø> (ø)		Carriedforward from 5714554
neon_dashboard	96.05% <ø> (ø)		Carriedforward from 5714554
neon_framework	59.20% <0.00%> (-0.07%)	⬇️
neon_http_client	97.50% <ø> (ø)		Carriedforward from 5714554
neon_notifications	100.00% <ø> (ø)		Carriedforward from 5714554
neon_storage	94.66% <ø> (ø)		Carriedforward from 5714554
neon_talk	99.45% <ø> (ø)		Carriedforward from 5714554
nextcloud	24.26% <ø> (ø)		Carriedforward from 5714554
notifications_app	97.40% <ø> (ø)
notifications_push_repository	98.59% <98.59%> (?)
sort_box	90.90% <ø> (ø)		Carriedforward from 5714554
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
packages/neon_framework/lib/src/testing/mocks.dart	92.30% <ø> (ø)
...h_repository/lib/src/models/push_subscription.dart	100.00% <100.00%> (ø)
...repository/lib/src/notifications_push_storage.dart	100.00% <100.00%> (ø)
...ory/lib/src/testing/testing_push_notification.dart	100.00% <100.00%> (ø)
...ory/lib/src/testing/testing_push_subscription.dart	100.00% <100.00%> (ø)
...ions_push_repository/lib/src/utils/encryption.dart	100.00% <100.00%> (ø)
...ository/lib/src/notifications_push_repository.dart	98.88% <98.88%> (ø)
...es/neon_framework/lib/src/storage/persistence.dart	71.42% <0.00%> (-28.58%)	⬇️
...neon_framework/lib/src/storage/settings_store.dart	84.61% <0.00%> (-15.39%)	⬇️
...repository/lib/src/models/push_subscription.g.dart	96.72% <96.72%> (ø)

[Leptopoda]

Thanks for the work.
I'm not a big fan of the code style in the repo.
Many methods in there do not take any parameters and rely on the global state of the repo. I've already outlined most of my concerns, and maybe fixing them is enough.