feat: rebuild theme-default

[Mister-Hope]

TODOs:

• extract and improve theme-helper package

Bugs:

• slots is not reactive (found in layouts/Layout.vue)

[coveralls]

Pull Request Test Coverage Report for Build 9125046679

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 49.759%

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Totals
Change from base Build 9123655949:	0.0%
Covered Lines:	681
Relevant Lines:	1238

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💛 - Coveralls

[Mister-Hope]

@pengzhanbo Can you send a pr about onContentUpdate to the core repo?

[pengzhanbo]

@pengzhanbo Can you send a pr about onContentUpdate to the core repo?

Done. vuepress/core#1620

[Mister-Hope]

RFC: useData in main branch and here

@pengzhanbo

I think using theme to represent themeLocaleData could be every dangerous, all other parts for the repo is using theme and themeLocale to represent ThemeData and ThemeLocaleData, and the new theme useData() could be every confusing to visitors who want to dig into our code. Futhermore, it increase the possibility that the team members misuse themeData with themeLocaleData in future developement, as their variable name are the same from useData() and useThemeData().

I would suggest using themeLocale to represent theme locale data always.