Upgrade react-native-safe-area-context before RN 0.88 bump

[MelvinBot]

Parent issue

Part of #101427 — must land before the main React Native 0.88 / Expo SDK 58 bump PR.

Background

Expo SDK 58 bundles react-native-safe-area-context ~5.9.1. main is on 5.6.2. Safe Area Context declares react-native: *, so it is not gated on the RN bump and can land on the current RN 0.86 / Expo SDK 57 stack. This is a minor bump with no known breaking API changes.

Scope

• Bump react-native-safe-area-context 5.6.2 → ~5.9.1 in App (and Mobile-Expensify if required for HybridApp parity)
• Rebase or remove the existing patch under patches/react-native-safe-area-context/, pinned to 5.6.2 in its filename: react-native-safe-area-context+5.6.2+001+fix-removechild-crash-on-unmount.patch — check whether the upstream fix landed between 5.7 and 5.9 so the patch can be dropped rather than rebased

Target

• react-native-safe-area-context@~5.9.1 (Expo SDK 58 bundled version)

Acceptance criteria

• App builds on iOS, Android, and web
• HybridApp builds if Mobile-Expensify changes are needed
• Safe area insets are correct on notched iOS devices, Android with gesture navigation, and in landscape
• No removeChild crash regression on unmount (the behavior the patch guards)
• Patch audit documented: keep, update, or remove
• No new JS console errors

Notes

• Keep this PR focused — do not include the RN / Expo version bump here

Issue Owner

Current Issue Owner: @war-in

[melvin-bot]

@war-in Uh oh! This issue is overdue by 2 days. Don't forget to update your issues!