Increased global Playwright expect timeout to 10s

- this sometimes helps when CI is slow, and is the best way to set it
  globally

ghost/core/playwright.config.js

@@ -2,6 +2,9 @@
 
 const config = {
     timeout: 60 * 1000,
+    expect: {
+        timeout: 10000
+    },
     workers: 1,
     reporter: [['list', {printSteps: true}]],
     use: {