Fix storybook / chromatic tests flakyness and integration tests (#11687)

## Storybook flakyness

### Actor Display image flakyness

<img width="1512" alt="image"
src="https://github.com/user-attachments/assets/875c0738-5e31-4aba-9231-4ba5f78d1355"
/>

**Fix:** stop using a random usage

### Task Groups broken

<img width="1512" alt="image"
src="https://github.com/user-attachments/assets/c67e47a1-a027-43f1-9601-68d61a8052b4"
/>

**Fix:** add missing TabListComponentInstance

## Flaky dates

Add https://github.com/k35o/storybook-addon-mock-date

## Integration tests

Fix broken tests due to relation refactoring

packages/twenty-front/src/modules/ui/field/display/components/__stories__/ActorDisplay.stories.tsx

@@ -37,7 +37,7 @@ export const Catalog: Story = {
         },
         {
           name: 'avatarUrl',
-          values: [null, 'https://picsum.photos/16'],
+          values: [null, 'https://picsum.photos/id/237/16/16'],
           props: (avatarUrl: string) => ({ avatarUrl }),
         },
       ],