WIP filters: when invalid filter value, use default value if there is one

[Rineee]

When the filter argument is invalid, django adds and shows the label 'All', also in the case that this isnt a 'real' choice. With this, it would now use the default value of the filter if there is one.

[github-actions[bot]]

Coverage report

Total coverage

Status	Category	Percentage	Covered / Total
🔴	Statements	9.22%	105/1139
🔴	Branches	10.97%	77/702
🔴	Functions	9.54%	35/367
🔴	Lines	15.66%	548/3500

Status of coverage: 🟢 - ok, 🟡 - slightly more than threshold, 🔴 - under the threshold

Report generated by 🧪jest coverage report action from ff64537bc9e68aab47624ce2720fc22738cafcbf

[Rineee]

So this is not working, the tests are failing as it still takes the ordering by pks.. maybe this could help? https://django-filter.readthedocs.io/en/stable/ref/filterset.html#custom-forms-using-form