Remove react-native-keyboard-controller 1.21.0 patch once upstream fix is released

[esimkowitz]

Context

react-native-keyboard-controller's replaceStatusBarInsets() zeroes out the top system bar inset when statusBarTranslucent=true. With edgeToEdgeEnabled=true (Expo 54 default), KeyboardProvider forces statusBarTranslucent=true regardless of props, so the top inset is always zeroed before being dispatched to child views. This causes react-native-screens' CustomToolbar to receive top=0 and apply no status bar padding, making the header overlap the status bar on Android.

We applied a pnpm patch to react-native-keyboard-controller that always passes through the real sysBars.top. The content margin in setupWindowInsets() already handles the layout offset independently.

The patch was added in #2523.

Action

Once a fix is released upstream in react-native-keyboard-controller:

1. Upgrade react-native-keyboard-controller in apps/mobile/package.json to the version containing the fix
2. Remove patches/react-native-keyboard-controller@1.21.0.patch
3. Remove the react-native-keyboard-controller@1.21.0 entry from patchedDependencies in root package.json
4. Run pnpm install and verify on Android

References

• Upstream issue: KeyboardProvider overrides system insets on Android potentially affecting native views kirillzyusko/react-native-keyboard-controller#1013
• Related issue: The library interacts oddly with Android header height in @react-navigation/native-stack kirillzyusko/react-native-keyboard-controller#1292
• react-native-screens issue (symptom): No top insets for Android in 4.19.0 software-mansion/react-native-screens#3499
• Our PR: feat(mobile): iOS 26 header compatibility and header icon fixes #2523