[#927] Added cache decorator to some case-views to improve navigation

[Bartvaderkin]

No description provided.

[codecov-commenter]

Codecov Report

Merging #380 (1e313f4) into develop (7d17b02) will increase coverage by 0.12%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #380      +/-   ##
===========================================
+ Coverage    95.92%   96.05%   +0.12%     
===========================================
  Files          457      461       +4     
  Lines        14471    14842     +371     
===========================================
+ Hits         13881    14256     +375     
+ Misses         590      586       -4     

Impacted Files	Coverage Δ
src/open_inwoner/accounts/views/cases.py	97.38% <100.00%> (ø)
src/open_inwoner/conf/base.py	94.96% <100.00%> (+0.06%)	⬆️
src/open_inwoner/openzaak/cases.py	70.66% <100.00%> (+5.38%)	⬆️
src/open_inwoner/openzaak/catalog.py	52.63% <100.00%> (+1.72%)	⬆️
src/open_inwoner/openzaak/documents.py	92.85% <100.00%> (+1.02%)	⬆️
...rc/open_inwoner/openzaak/tests/test_case_detail.py	100.00% <100.00%> (ø)
...c/open_inwoner/openzaak/tests/test_case_request.py	100.00% <100.00%> (ø)
src/open_inwoner/openzaak/tests/test_cases.py	100.00% <100.00%> (ø)
src/open_inwoner/openzaak/tests/test_documents.py	100.00% <100.00%> (ø)
src/open_inwoner/accounts/models.py	97.77% <0.00%> (-0.88%)	⬇️
... and 24 more

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[alextreme]

Maybe it would be good to make these durations into Django settings?

I'm doubting the zaak/informatieobject caching, it might be viable for ~30 seconds but 3 minutes feels a bit too long. And with 30 seconds it might just not be worthwhile anymore.

Feel free to discuss this with Anna if you want. Could also be something that we enable after the demo.

[Bartvaderkin]

@alextreme I appended the PR with settings for the timeouts and removed caching on two calls that currently don't need it because they are only used in the download view.

[vaszig]

For fetch_specific_status function (openzaak/cases) we don't use a variable because it's only used once right?