fix: next slide preview

[yuyinws]

resolve #2192

Description

The clicksContext for next slide preview should not be fixed. This will cause click system not work normally.

*	Inspect the next preview container
Before
After

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@slidev/client

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create-slidev

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@slidev/parser

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@slidev/cli

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@slidev/types

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commit: a7b8fe3

[micheljung]

Thanks for the quick fix! 😃