fix(iOS): modal swipe dismissal works only for the first time (#53499)

Summary:
This PR fixes swipe dismissal to work each time the modal is shown. Previously modalInPresentation was set on the view controller which gets destroyed every time user dismisses the modal. This makes sure that modal in presentation is correctly preserved when showing multiple modals.

https://github.com/user-attachments/assets/c7f140e5-1c4f-4809-8453-148d4becc9eb

## Changelog:

[IOS] [FIXED] - modal swipe dismissal works only for the first time

Pull Request resolved: #53499

Test Plan:
1. Open RN Tester
2. Check allow swipe dismissal
3. Check closing it multiple times

Reviewed By: javache

Differential Revision: D81312918

Pulled By: cipolleschi

fbshipit-source-id: 4f7cc60762660e5d5310f4973fe8df340c1ba52b

Author: okwasniewski

packages/react-native/React/Fabric/Mounting/ComponentViews/Modal/RCTModalHostViewComponentView.mm

@@ -106,6 +106,7 @@ @implementation RCTModalHostViewComponentView {
   BOOL _shouldAnimatePresentation;
   BOOL _shouldPresent;
   BOOL _isPresented;
+  BOOL _modalInPresentation;
 }
 
 - (instancetype)initWithFrame:(CGRect)frame
@@ -115,6 +116,7 @@ - (instancetype)initWithFrame:(CGRect)frame
     _shouldAnimatePresentation = YES;
 
     _isPresented = NO;
+    _modalInPresentation = YES;
   }
 
   return self;
@@ -126,7 +128,7 @@ - (RCTFabricModalHostViewController *)viewController
     _viewController = [RCTFabricModalHostViewController new];
     _viewController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
     _viewController.delegate = self;
-    _viewController.modalInPresentation = YES;
+    _viewController.modalInPresentation = _modalInPresentation;
   }
   return _viewController;
 }
@@ -152,6 +154,7 @@ - (void)ensurePresentedOnlyIfNeeded
   if (shouldBePresented) {
     [self saveAccessibilityFocusedView];
     self.viewController.presentationController.delegate = self;
+    self.viewController.modalInPresentation = _modalInPresentation;
 
     _isPresented = YES;
     [self presentViewController:self.viewController
@@ -276,7 +279,8 @@ - (void)updateProps:(const Props::Shared &)props oldProps:(const Props::Shared &
   self.viewController.modalPresentationStyle = presentationConfiguration(newProps);
 
   if (oldViewProps.allowSwipeDismissal != newProps.allowSwipeDismissal) {
-    self.viewController.modalInPresentation = !newProps.allowSwipeDismissal;
+    _modalInPresentation = !newProps.allowSwipeDismissal;
+    self.viewController.modalInPresentation = _modalInPresentation;
   }
 
   _shouldPresent = newProps.visible;