feat(plugin-git): add composables

[Mister-Hope]

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[coveralls]

Pull Request Test Coverage Report for Build 13785042715

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 59.533%

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Totals
Change from base Build 13785012523:	0.0%
Covered Lines:	1358
Relevant Lines:	2059

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💛 - Coveralls

[Mister-Hope]

TODO:

1. Update changelog component class name with vp prefix
2. Reduce page data size

RFC here:

1. git username is definitely not equalized to GitHub username, while the plugin is doing this as default behavior. I think Gravatar with email should be always preferred.
2. There are likely users contributing with both noreply and own emails, we need to special mention it in docs and provide guidelines for users merging contributors easily (probably provide utils functions to avoid writing complicated functions like this: https://github.com/vuepress-theme-hope/vuepress-theme-hope/blob/ce8916d7eee286c4238e811adf59c1d847a402cd/docs-shared/src/theme-wrapper.ts#L94-L127)
3. When detecting a noreply email, I think this should be removed in the commit info.

[pengzhanbo]

git username is definitely not equalized to GitHub username, while the plugin is doing this as default behavior.

In ContributorsOptions.info, the username is configured as the username for the git service provider. It is inevitable that git.name in the git configuration does not equal the GitHub username, which is why there is an alias option; it allows users to be quickly merged into the correct username.

I think Gravatar with email should be always preferred.

When it is clear that the username is a GitHub username, using avatars.githubusercontent.com is reasonable; in other cases, Gravatar is used as a fallback.

There are likely users contributing with both noreply and own emails, we need to special mention it in docs and provide guidelines for users merging contributors easily

The plugin will extract the username from the noreply email using getUserNameWithNoreplyEmail().

When detecting a noreply email, I think this should be removed in the commit info.

A noreply email is generally used by users who wish to keep their email addresses private when commits, so it cannot be assumed that submissions from noreply emails can be disregarded.