VAR Error Notification Component

### VAR Error Notification

Figma: [VAR Error Notification ](https://www.figma.com/design/WADcmVjJh5ARVoZ09xlpfdFN/DemocracyLab?node-id=39340-84880&t=KPcLW0nctl77aaFZ-4)

### Location
**Component File:**

common/components/componentsBySection/VolunteerActivityReporting/VARErrorNotification.jsx

**Storybook File:**

common/components/componentsBySection/VolunteerActivityReporting/stories/VARErrorNotification.stories.jsx

**Styles File:**

civictechprojects/static/css/partials/_VARErrorNotification.scss

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**Props**
`showError` (boolean): If `true`, this component renders a warning icon and hardcoded error message. If `false`, nothing is rendered.

**Test cases in Storybook**

- Default State (`showError={true}`): Renders warning emoticon and hardcoded message (bold and regular text) and follows styling from Figma
- Hidden State (`showError={false}`): Renders nothing