feat: support `i18nMonth` for date in list item

[hucste]

if i18n exists, the month into this list item is not correctly displayed. Actually, only in english. With this fixe, month is displayed segun language code.

[reuixiy]

So as the comment in config.toml,

https://github.com/reuixiy/hugo-theme-meme/blob/a7c47aa5f4f33373068a24fb9f735a2b8dfee501/config-examples/en/config.toml#L449-L450

I don't think this is a bug. Though, it could be an enhancement.

Also, in your code, if i18nMonth is enabled, then the listDateFormat will not be respected -- it's hard-coded to "January 2" format. But there are many different date formats in different countries, see:

• https://en.wikipedia.org/wiki/Date_format_by_country
• https://gohugo.io/functions/format/

In other words, the character is i18ned but the format is not, or is destroyed.

[hucste]

Ok, I understand the problem. For the moment, I don't known how fix it. but you have to admit that having the dates, once in FR (or other lang), once in EN, so sucks. :( (I thought I'd come up with a solution and move things along...)