Fix typos in lazy.md and cache.md

[kihyeoon]

This PR fixes a few typos in the documentation:

1. Fixed missing ";" and corrected an extra ")" in the code examples in cache.md.
2. Removed an unnecessary space before the closing </Suspense> tag in the Lazy guide.

Thanks for maintaining such great documentation!

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[github-actions]

Size changes

📦 Next.js Bundle Analysis for react-dev

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌

[harish-sethuraman]

Thanks for sending a PR. but currently we aren't merging stylistic code changes.

[kihyeoon]

@harish-sethuraman
Thank you for the feedback!
I just wanted to clarify that the issue in cache.md is actually a syntax error, not just a stylistic change.
The extra ")" in the code example would cause an error if the code were run.

Here's the problematic code:

function WeatherReport({record}) {
  const avgTemp = useMemo(() => calculateAvg(record)), record);
  // ...
}

Could we perhaps reconsider merging this change?

[harish-sethuraman]

Sorry my bad. Merging this 👍🏻 thanks for following up.