feat: apply labelStyle to component label views

- Update Picker to use applyStyles(labelStyle) instead of labelColor
- Apply labelStyle to TextField, NumberField, Stepper, and Slider labels
- Update LabeledContent implementations to use explicit label blocks

Author: mgcrea

ios/components/NumberField/NumberFieldView.swift

@@ -15,12 +15,16 @@ public struct NumberFieldView: View {
       inputField()
     } else {
       if #available(iOS 16.0, *) {
-        LabeledContent(props.label) {
+        LabeledContent {
           inputField()
+        } label: {
+          Text(props.label)
+            .applyStyles(props.labelStyle)
         }
       } else {
         HStack {
           Text(props.label)
+            .applyStyles(props.labelStyle)
           inputField()
         }
       }

ios/components/Picker/PickerView.swift

@@ -61,19 +61,7 @@ public struct PickerView: View {
 
   @ViewBuilder
   private func labelView() -> some View {
-    if let color = resolvedLabelColor {
-      Text(props.label)
-        .foregroundColor(color)
-    } else {
-      Text(props.label)
-        .foregroundColor(.primary)
-    }
-  }
-
-  private var resolvedLabelColor: Color? {
-    guard let colorValue = props.labelColor else {
-      return nil
-    }
-    return Color(value: colorValue)
+    Text(props.label)
+      .applyStyles(props.labelStyle)
   }
 }

ios/components/Slider/SliderView.swift

@@ -18,12 +18,16 @@ public struct SliderView<Content: View>: View {
       sliderContent()
     } else {
       if #available(iOS 16.0, *) {
-        LabeledContent(props.label) {
+        LabeledContent {
           sliderContent()
+        } label: {
+          Text(props.label)
+            .applyStyles(props.labelStyle)
         }
       } else {
         HStack {
           Text(props.label)
+            .applyStyles(props.labelStyle)
           sliderContent()
         }
       }

ios/components/Stepper/StepperView.swift

@@ -17,12 +17,16 @@ public struct StepperView<Content: View>: View {
       stepperContent()
     } else {
       if #available(iOS 16.0, *) {
-        LabeledContent(props.label) {
+        LabeledContent {
           stepperContent()
+        } label: {
+          Text(props.label)
+            .applyStyles(props.labelStyle)
         }
       } else {
         HStack {
           Text(props.label)
+            .applyStyles(props.labelStyle)
           stepperContent()
         }
       }

ios/components/TextField/TextFieldView.swift

@@ -16,12 +16,16 @@ public struct TextFieldView: View {
         inputField()
       } else {
         if #available(iOS 16.0, *) {
-          LabeledContent(props.label) {
+          LabeledContent {
             inputField()
+          } label: {
+            Text(props.label)
+              .applyStyles(props.labelStyle)
           }
         } else {
           HStack {
             Text(props.label)
+              .applyStyles(props.labelStyle)
             inputField()
           }
         }