fix: use >> instead of >>> for Playwright shadow DOM chaining

Author: DavertMik

lib/helper/Playwright.js

@@ -4097,9 +4097,10 @@ function buildLocatorString(locator) {
     return `xpath=${locator.value}`
   }
   if (locator.isShadow()) {
-    // Convert shadow locator to CSS with >>> deep descendant combinator
-    // { shadow: ['my-app', 'recipe-hello', 'button'] } => 'my-app >>> recipe-hello >>> button'
-    return locator.value.join(' >>> ')
+    // Convert shadow locator to CSS with >> chaining operator
+    // Playwright pierces shadow DOM by default, >> chains selectors
+    // { shadow: ['my-app', 'my-form', 'button'] } => 'my-app >> my-form >> button'
+    return locator.value.join(' >> ')
   }
   return locator.simplify()
 }