newsletter: Add section on WPT progress for October

src/content/newsletters/2024-10-31.mdx

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 ![](/assets/img/newsletter-oct-2024-clip-path-shapes.png)
 
+### Web Platform Tests
+
+We continue to make solid progress in our Web Platform Test compliance. We are now passing **40,568** more subtests
+than last month, bringing our total to **1,551,575** passing subtests!
+
+Particular effort has been made this month in improving our WebDriver implementation. We now implement all of the
+endpoints required by the WebDrover specification. This allows us to run many more tests, which use WebDriver to
+simulate various kinds of user interaction.
+
 ### Credits
 
 We thank the following people who contributed code to Ladybird in October 2024: