docs: fix documentation example code errors

[gantoho]

Description

look at this link: https://valaxy.site/guide/why#why-valaxy

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Name	Status	Preview	Comments	Updated (UTC)
valaxy-docs-dev	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 31, 2023 9:31am

[YunYouJun]

We don't need to change this because the internal code does PartialDeep.

type UserValaxyNodeConfig<ThemeConfig = DefaultTheme.Config> = PartialDeep<ValaxyNodeConfig<ThemeConfig>>;
/**
 * fn with options for theme config
 */
type ValaxyConfigFn<ThemeConfig = DefaultTheme.Config> = (options: ResolvedValaxyOptions<ThemeConfig>) => ValaxyNodeConfig | Promise<ValaxyNodeConfig>;
type ValaxyConfigExport<ThemeConfig = DefaultTheme.Config> = ValaxyNodeConfig<ThemeConfig> | ValaxyConfigFn<ThemeConfig>;