fix: adjust default font size per platform

Author: okwasniewski

packages/react-native-bottom-tabs/ios/TabBarFontSize.swift

@@ -0,0 +1,16 @@
+import UIKit
+
+enum TabBarFontSize {
+  /// Returns the default font size for tab bar item labels based on the current platform
+#if os(tvOS)
+  static var defaultSize: CGFloat = 30.0
+#else
+  static var defaultSize: CGFloat = {
+    if UIDevice.current.userInterfaceIdiom == .pad {
+      return 13.0
+    }
+    
+    return 10.0
+  }()
+#endif
+}

packages/react-native-bottom-tabs/ios/TabViewImpl.swift

@@ -169,12 +169,6 @@ private func createFontAttributes(
   return attributes
 }
 
-#if os(tvOS)
-let tabBarDefaultFontSize: CGFloat = 30.0
-#else
-let tabBarDefaultFontSize: CGFloat = UIFont.smallSystemFontSize
-#endif
-
 #if !os(macOS)
 private func configureTransparentAppearance(tabBar: UITabBar, props: TabViewProps) {
   tabBar.barTintColor = props.barTintColor
@@ -185,7 +179,7 @@ private func configureTransparentAppearance(tabBar: UITabBar, props: TabViewProp
 
   guard let items = tabBar.items else { return }
 
-  let fontSize = props.fontSize != nil ? CGFloat(props.fontSize!) : tabBarDefaultFontSize
+  let fontSize = props.fontSize != nil ? CGFloat(props.fontSize!) : TabBarFontSize.defaultSize
   let attributes = createFontAttributes(
     size: fontSize,
     family: props.fontFamily,