Implement Stringable in Frame, FrameLocator, Locator, and SelectorChain

src/Frame/Frame.php

@@ -23,7 +23,7 @@
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
 
-final class Frame implements FrameInterface
+final class Frame implements \Stringable, FrameInterface
 {
     private LoggerInterface $logger;
 

src/Frame/FrameLocator.php

@@ -21,7 +21,7 @@
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
 
-final class FrameLocator implements FrameLocatorInterface
+final class FrameLocator implements \Stringable, FrameLocatorInterface
 {
     private LoggerInterface $logger;
 

src/Locator/Locator.php

@@ -23,7 +23,7 @@
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
 
-final class Locator implements LocatorInterface
+final class Locator implements \Stringable, LocatorInterface
 {
     private SelectorChain $selectorChain;
 

src/Locator/SelectorChain.php

@@ -14,7 +14,7 @@
 
 namespace Playwright\Locator;
 
-final class SelectorChain implements SelectorChainInterface
+final class SelectorChain implements \Stringable, SelectorChainInterface
 {
     /** @var array<string> */
     private array $selectors = [];