Chore: update terms page texts

Related to #1528

What does this MR do and why?

1. Update terms text on registration page.
2. Remove "如果您不同意这些条款，您可以联系 %{support} 对您的现有账户进行协助。" on terms page.

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added SaaS featureenhancement frontend labels

assigned to @mtan-gitlab-cn

added typefeature label

changed milestone to %15.3

changed the description

	2 Warnings
	1e1aa080: Commits that change 30 or more lines across at least 3 files should describe these changes in the commit body. For more information, take a look at our Commit message guidelines.
	featureaddition and featureenhancement merge requests normally have a documentation change. Consider adding a documentation update or confirming the documentation plan with the Technical Writer counterpart. For more information, see: The Handbook page on merge request types. The definition of done documentation.

	1 Message
	CHANGELOG missing: If you want to create a changelog entry for GitLab FOSS, add the Changelog trailer to the commit message you want to add to the changelog. If you want to create a changelog entry for GitLab EE, also add the EE: true trailer to your commit message. If this merge request doesn't need a CHANGELOG entry, feel free to ignore this message.

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Category	Reviewer	Maintainer
frontend	Sharmad Nachnolkar (@snachnolkar) (UTC+5.5)	Andrew Fontaine (@afontaine) (UTC-4)

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• jh/locale/zh_CN/gitlab.po
• jh/locale/zh_HK/gitlab.po

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Generated by Danger

marked this merge request as ready

requested review from @prajnamas and @shuangzhang

LGTM

approved this merge request

这是此合并请求第一次被批准，现在可以开始做安全审查了。

@icbd，你能帮忙做安全审查吗（使用"批准"功能）？

added security-reviewpending label

assigned to @jeremywu

changed the description

added 197 commits

• 15d3ccec...deac8766 - 195 commits from branch main-jh
• eda89397 - Chore: update terms page texts
• 75ad14f8 - Fix: remove terms text msgid

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