fix(iOS): add missing largeTitleBackgroundColor prop (#2500)

## Description

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## Changes

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## Checklist

- [ ] Included code example that can be used to test this change
- [ ] Updated TS types
- [ ] Updated documentation: <!-- For adding new props to native-stack
-->
- [ ]
https://github.com/software-mansion/react-native-screens/blob/main/guides/GUIDE_FOR_LIBRARY_AUTHORS.md
- [ ]
https://github.com/software-mansion/react-native-screens/blob/main/native-stack/README.md
- [ ]
https://github.com/software-mansion/react-native-screens/blob/main/src/types.tsx
- [ ]
https://github.com/software-mansion/react-native-screens/blob/main/src/native-stack/types.tsx
- [ ] Ensured that CI passes

Author: EvanBacon

ios/RNSScreenStackHeaderConfig.mm

@@ -964,7 +964,8 @@ - (void)updateProps:(react::Props::Shared const &)props oldProps:(react::Props::
   _largeTitleFontWeight = RCTNSStringFromStringNilIfEmpty(newScreenProps.largeTitleFontWeight);
   _largeTitleFontSize = [self getFontSizePropValue:newScreenProps.largeTitleFontSize];
   _largeTitleHideShadow = newScreenProps.largeTitleHideShadow;
-
+  _largeTitleBackgroundColor = RCTUIColorFromSharedColor(newScreenProps.largeTitleBackgroundColor);
+  
   _backTitle = RCTNSStringFromStringNilIfEmpty(newScreenProps.backTitle);
   if (newScreenProps.backTitleFontFamily != oldScreenProps.backTitleFontFamily) {
     _backTitleFontFamily = RCTNSStringFromStringNilIfEmpty(newScreenProps.backTitleFontFamily);