[Suggestion]: add explanation & illustration for the Note in the 'Passing state deeply with context' chapter

Summary

Currently, in the Note, it says "This example uses heading levels because they show visually how nested components can override context.". However, it is unclear what this sentence means. What does it mean for a nested component to override context? I suspect that 'because they show visually how nested components can override context' is not correct, or if correct, it needs clear explanation what it means, because I personally don't get it (and I don't want to ask GPT to get a wrong answer...).

If left unchanged, this sentence risks confusing millions of learners in my opinion (myself included).

Page

https://react.dev/learn/passing-data-deeply-with-context

Details

The sentence "This example uses heading levels because they show visually how nested components can override context." is not explained. It would be useful to explain this much more explicitly. It's like throwing a sentence at a super abstract level... (which is not helpful for learners).

從 issue 中連結的 “Passing data deeply with context” 頁面開始，閱讀關於標題層級以及巢狀元件覆寫 context 的句子附近的 Note。透過解釋和圖示說明範例展示了什麼，藉此釐清這項敘述；完成標準是學習者無需外部說明即可理解其中的關係。