Move isRTL inside the if

Author: qutrek

packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTAttributedTextUtils.mm

@@ -218,8 +218,8 @@ inline static CGFloat RCTEffectiveFontSizeMultiplierFromTextAttributes(const Tex
   // Paragraph Style
   NSMutableParagraphStyle *paragraphStyle = [NSMutableParagraphStyle new];
   BOOL isParagraphStyleUsed = NO;
-  const bool isRTL = textAttributes.layoutDirection == LayoutDirection::RightToLeft;
   if (textAttributes.alignment.has_value() || textAttributes.layoutDirection.has_value()) {
+    const bool isRTL = textAttributes.layoutDirection == LayoutDirection::RightToLeft;
     TextAlignment textAlignment =
         RCTResolveTextAlignment(textAttributes.alignment.value_or(TextAlignment::Natural), isRTL);