feat(tool,nextcloud)!: Generate rich object parameters

[provokateurin]

Closes #1847

Not really useful at the moment because of the lack of discriminator support (#1231) and a way to use exhaustive switch statements.

[codecov]

Codecov Report

Attention: Patch coverage is 37.50000% with 50 lines in your changes missing coverage. Please review.

Project coverage is 30.92%. Comparing base (afc834f) to head (c624c39).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1877      +/-   ##
==========================================
+ Coverage   30.85%   30.92%   +0.07%     
==========================================
  Files         262      265       +3     
  Lines       96602    96709     +107     
==========================================
+ Hits        29808    29911     +103     
- Misses      66794    66798       +4     

Flag	Coverage Δ		*Carryforward flag
cookie_store	90.51% <ø> (ø)		Carriedforward from 17bb8e1
dynamite	31.10% <ø> (ø)		Carriedforward from 17bb8e1
dynamite_end_to_end_test	60.03% <ø> (ø)		Carriedforward from 17bb8e1
dynamite_runtime	85.40% <ø> (ø)		Carriedforward from 17bb8e1
neon_dashboard	96.20% <ø> (ø)
neon_framework	45.90% <ø> (+0.12%)	⬆️
neon_notifications	100.00% <ø> (ø)
neon_talk	98.66% <100.00%> (-0.29%)	⬇️
nextcloud	27.67% <20.63%> (-0.01%)	⬇️
sort_box	90.90% <ø> (ø)		Carriedforward from 17bb8e1

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

Files	Coverage Δ
...ckages/neon/neon_talk/lib/src/widgets/message.dart	98.54% <100.00%> (-1.04%)	⬇️
...on/neon_talk/lib/src/widgets/rich_object/file.dart	100.00% <100.00%> (ø)
...neon_talk/lib/src/widgets/rich_object/mention.dart	100.00% <100.00%> (ø)
packages/nextcloud/lib/src/api/spreed.openapi.dart	32.31% <80.00%> (-0.03%)	⬇️
...ckages/nextcloud/lib/src/api/spreed.openapi.g.dart	14.89% <15.51%> (-0.01%)	⬇️

... and 5 files with indirect coverage changes

[provokateurin]

I change the patch to only be a simple object instead of the discriminator so in theory it is usable now (and also everything works). I would like to first upstream the missing parameter type and missing fields. Additionally we have to wait until the next Talk releases which will include nextcloud/spreed#12021 as the some parameters were incorrectly not typed as string before.

[provokateurin]

Ok apparently the fix for Talk was only backport to 29. To keep supporting the broken values we'll have to change the type to oneOf<int|string> for now :/ Once 28 support is dropped we can remove the hack.

[provokateurin]

PR for the fields that are missing in the current definitions is sent upstream: nextcloud/server#45424

[provokateurin]

Let's just get this merged and using the discriminator can be done later once dynamite properly supports it again.

[Leptopoda]

LGTM. Please verify the comment.