[locale] zh-cn: Improve next/prev week

[ulion]

This error was introduced by f38d69c

This PR mostly restore the calendar output to the most common formats, which is almost quite same with what it was before above commit.

This PR passed the test and will fix:
#4097
#4149
#4354
#5414

And you can close other invalid PR like: #5357

[jsf-clabot]

All committers have signed the CLA.

[coveralls]

Coverage decreased (-0.08%) to 88.333% when pulling 2af84df on ulion:feature/locale_calendar_zhcn_fix into 13a61b2 on moment:develop.

[coveralls]

Coverage decreased (-0.0005%) to 88.485% when pulling 915aa66 on ulion:feature/locale_calendar_zhcn_fix into e3baef9 on moment:develop.

[Alanscut]

@ulion Do you need to fix zh-hk.js and zh-tw.js simultaneously? This should be a general problem for other locales.

[ulion]

Probably we need ask some contributors who are actually in those areas, since the usage maybe different due to different culture. Alan Wang <notifications@github.com> 于2020年4月20日周一 上午10:56写道：

…

@ulion <https://github.com/ulion> Do you need to fix zh-hk.js and zh-tw.js simultaneously? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#5447 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AABKYHNXS5PAACRGUB6EDSTRNO2V5ANCNFSM4MLWX5TQ> .

-- Ulion

[ulion]

@ben-lin @hehachris @skfd

[ichernev]

@zenozeng can you comment on that please.

[hehachris]

Is it necessary to explicitly mention 本 for the current week?

Suggested change

	return '[本]dddLT';
	return 'dddLT';

[ulion]

It is about accurate, when your are in Saturday, you say Sunday, it will be the next week's Sunday, means '下'(next) week, not '本'(this) week
But this nearest rule is not explicated, so you probably don't know which week it is. while on the other hand, if you say Monday of this week (本周一）, Sunday of this week（本周日）, it's explicated located an accurate day which refer to current day, share the same week, in certain culture (with the Sunday belong to previous week or next week rule setup).

And before the commit mentioned in my PR which resulted wrong calendar output, the code did this too, which is the proper way to make the representation of the day as explicated accurate as possible and simple. Just as you said Monday of next week (下周一），the Monday of this week（本周一) is simply same rule and same clear. while just "Monday" would be unclear if you are in a day which is more close to the next Monday.

[hehachris]

@ulion Do you need to fix zh-hk.js and zh-tw.js simultaneously? This should be a general problem for other locales.

Agree with @Alanscut

[ulion]

@ulion Do you need to fix zh-hk.js and zh-tw.js simultaneously? This should be a general problem for other locales.

Agree with @Alanscut

I already mentioned @ben-lin @hehachris @skfd who authored that two locale. I'm not sure the culture of that two region indeed, so can not decide for them. let them help themselves would be best.

[marwahaha]

@ulion Could you update your PR with the latest code?
I am not sure what the status of this is. Did @zenozeng or @suupic approve?

[ulion]

@marwahaha updated.

[marwahaha]

@ulion You may need to run eslint fix and prettier

./node_modules/eslint/bin/eslint.js Gruntfile.js tasks src --fix
npm run prettier-fmt

[ulion]

Done. Kunal Marwaha <notifications@github.com> 于2020年5月19日周二 下午9:20写道：

…

@ulion <https://github.com/ulion> You may need to run eslint fix and prettier ./node_modules/eslint/bin/eslint.js Gruntfile.js tasks src --fix npm run prettier-fmt — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#5447 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AABKYHL6NA3FMGUGR4QBL33RSKBQFANCNFSM4MLWX5TQ> .

-- Ulion

[marwahaha]

@ulion I am not sure we will get the original locale authors to approve. If you like, please add yourself as a locale author for zh-cn.

[ulion]

This does basically go back to old 'correct' version, which basically came from f4d4efd and the author is still list in the file, just no activity on github these two years.
Since no new things added here, I'm fine to be not listed.
r u there? @zenozeng though probably not I guess.

[marwahaha]

Ok.
Would any of you like to be locale authors?
I would prefer to add one more who has been on GitHub recently.
@tokinonagare
@awmleer
@willin
@huiop368
@uu109

[uu109]

Thank you for asking, I would love to be a locale author of 'zh-cn' language, hope to help you.

[willin]

LGTM