fix #699, add diaper change count to card stats

[josevh]

For #699, updated the diaper change card stats to indicate how many diaper changes took place.

I implemented the solution suggested in the issue and added (x changes) after the day label. Please advise if it is confusing or if a better alternative is preferred. I also haven't worked with Django translations in a while, please let me know if there are additional changes required on that end.

Screenshot

[josevh]

made a draft while I poke at tests

[josevh]

Seeing some errors and failures in the tests (run with Python 3.10.12). They appear unrelated. Run result: https://pastebin.com/m68hAESf

[cdubz]

Hm that seems like an odd collection of fails. Will try to take a look at the base tests soon.

[cdubz]

@josevh test fails were related to Django 5.x incompatibilities. I have updated master to lock Django to 4.x and created #738 to handle that upgrade. If you rebase or merge in master tests should pass.

[coveralls]

coverage: 99.0% (-0.02%) from 99.018%
when pulling 0868782 on josevh:diaperchange-change-count
into 1063d39 on babybuddy:master.

[josevh]

@cdubz ty, looks like the rebase onto latest master did the trick for the PR checks. Locally, I still see some errors/failures (Python 3.10.12 and Django 4.2.8) (paste) but that may be expected.

[cdubz]

Looks good -- thanks for contributing!