This has the side effect of forcing the date to something concrete.
For Year-only: 1st of January that year
Ex: 2025 -> 2025-01-01
For Year+Month: 1st of said month
Ex: 2024-11 -> 2024-11-01
MAL allows setting Day+Month and Day+Year, but both of those are sent
as `null` in the API, which means Mihon will not show a date at all.
This has the side effect of Mihon sending up the date as `null` the
next time info is sent to MAL, which will clear the date fields
completely.
Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>
MajorTanya
e287f08789