chore: add missing eval console screen

ui/screenshot/getting_started/evaluation_console.js

@@ -0,0 +1,11 @@
+const { capture } = require('../../screenshot.js');
+
+(async () => {
+  await capture('getting_started', 'evaluation_console', async (page) => {
+    await page.getByRole('link', { name: 'Console' }).click();
+    await page.locator('#flagKey-select-button').click();
+    await page.getByRole('option', { name: 'new-login New Login' }).click();
+    await page.getByPlaceholder('{}').click();
+    await page.getByRole('button', { name: 'Evaluate', exact: true }).click();
+  });
+})();

ui/screenshot/getting_started/fixtures/evaluation_console.yml

@@ -0,0 +1,20 @@
+namespace: default
+flags:
+  - key: new-login
+    name: New Login
+    description: Enables the new login page for users
+    enabled: true
+    variants:
+      - key: big-blue-login-button
+      - key: big-red-login-button
+    rules:
+      - segment: all-users
+        rank: 1
+        distributions:
+          - variant: big-blue-login-button
+            rollout: 50
+          - variant: big-red-login-button
+            rollout: 50
+segments:
+  - key: all-users
+    name: All Users