Docs: `overrideScrollViewContentInsetAdjustmentBehavior` option missing from Native Bottom Tab Navigator page

打开 docs/native-bottom-tab-navigator.md，阅读 tabBarStyle 和 tabBarMinimizeBehavior 附近的 Options 部分。检查 packages/bottom-tabs/src/unstable/types.tsx 中该选项的 JSDoc，然后记录其默认值、iOS-only 和 native-only 限制，以及透明标题栏出现空白间隙的现象。当读者可以在 Native Bottom Tab Navigator 页面上找到并理解此选项时，即表示完成。

The Tab.Screen option overrideScrollViewContentInsetAdjustmentBehavior is implemented and exposed in @react-navigation/bottom-tabs/unstable but not listed on the Native Bottom Tab Navigator docs page.

It's an iOS-only option with non-obvious default behaviour, and it's the only escape hatch for a fairly common visible bug — a blank gap appearing above content in a native-stack screen with headerTransparent: true nested inside a NativeTabs tab. The bug was reported in #12946 and the fix is exactly this option, but a reader hitting the symptom has no way to discover it from the docs.

JSDoc from the source

Whether to override the contentInsetAdjustmentBehavior of the first ScrollView in the first descendant chain from the tab screen.

By default, react-native's ScrollView has contentInsetAdjustmentBehavior set to never instead of UIKit-default (which is automatic). This prevents ScrollViews from respecting navigation bar insets. When this prop is set to true, automatic behavior is reverted.

To disable this behavior for specific screens, set this option to false.

Only supported with native implementation.

Defaults to true. iOS-only.

Suggested doc placement

Under "Options" on docs/native-bottom-tab-navigator.md, next to tabBarStyle / tabBarMinimizeBehavior (other iOS-flavoured presentation options). A brief mention of the symptom it fixes ("blank gap above content in a nested transparent-header screen on iOS") would help a lot.

Happy to PR if useful — just want to flag the gap before the next person hits it.