Adds comments

Author: Ecarrion

WooCommerce/Classes/View Modifiers/View+AutofocusTextModifier.swift

@@ -27,6 +27,8 @@ extension View {
     /// Autofocus in `TextField` and `TextEditor` is available only for iOS15+
     ///
     func focused() -> some View {
+        // Conditional check has to be done inside the Group function builder,
+        // otherwise the iOS 15 modifier will be loaded into memory and the app will crash.
         Group {
             if #available(iOS 15.0, *) {
                 self.modifier(AutofocusTextModifier())