[fabric] Use wrapped text view for multiline TextInput

Summary:
This diff updates the core TextInput RN component to use the wrapped text view for multiline TextInput.

Switching to `RCTWrappedTextView` enables correct `borderWidth` and `contentInsets` support for multi line text inputs while maintaining the same functionality for single line text input.

Scrolling text views are also supported correctly, with vertical height dependent scrollers.

Test Plan:
- Build Zeratul with Fabric enabled.
- Type in the search field to test the layout of the text contents
- Type in the composer to test multi line support and the layout of the text contents

| Before | After |
|--|
|  https://pxl.cl/3Xrrx  |  https://pxl.cl/3Xrr9  |

Reviewers: shawndempsey, #rn-desktop

Reviewed By: shawndempsey

Differential Revision: https://phabricator.intern.facebook.com/D51962396

Tasks: T167538822, T157889591

Author: Nick Lefever

packages/react-native/React/Fabric/Mounting/ComponentViews/TextInput/RCTTextInputComponentView.mm

@@ -16,6 +16,9 @@
 #import <React/RCTUITextField.h>
 #import <React/RCTUITextView.h>
 #import <React/RCTUtils.h>
+#if TARGET_OS_OSX // [macOS
+#import <React/RCTWrappedTextView.h>
+#endif // macOS]
 
 #import "RCTConversions.h"
 #import "RCTTextInputNativeCommands.h"
@@ -86,7 +89,11 @@ - (instancetype)initWithFrame:(CGRect)frame
     const auto &defaultProps = TextInputShadowNode::defaultSharedProps();
     _props = defaultProps;
 
+#if !TARGET_OS_OSX // [macOS]
     _backedTextInputView = defaultProps->multiline ? [RCTUITextView new] : [RCTUITextField new];
+#else // [macOS
+    _backedTextInputView = defaultProps->multiline ? [[RCTWrappedTextView alloc] initWithFrame:self.bounds] : [RCTUITextField new];
+#endif // macOS]
     _backedTextInputView.textInputDelegate = self;
     _ignoreNextTextInputCall = NO;
     _comingFromJS = NO;
@@ -672,7 +679,7 @@ - (void)blur
   [_backedTextInputView resignFirstResponder];
 #else // [macOS
   NSWindow *window = [_backedTextInputView window];
-  if ([window firstResponder] == _backedTextInputView) {
+  if ([window firstResponder] == _backedTextInputView.responder) {
     [window makeFirstResponder:nil];
   }
 #endif // macOS]
@@ -967,7 +974,7 @@ - (void)_setMultiline:(BOOL)multiline
 #if !TARGET_OS_OSX // [macOS]
   RCTUIView<RCTBackedTextInputViewProtocol> *backedTextInputView = multiline ? [RCTUITextView new] : [RCTUITextField new];
 #else // [macOS
-  RCTUITextView<RCTBackedTextInputViewProtocol> *backedTextInputView = [RCTUITextView new];
+  RCTPlatformView<RCTBackedTextInputViewProtocol> *backedTextInputView = multiline ? [RCTWrappedTextView new] : [RCTUITextField new];
 #endif // macOS]
   backedTextInputView.frame = _backedTextInputView.frame;
   RCTCopyBackedTextInput(_backedTextInputView, backedTextInputView);