[Frontend] Dashboard Alert

[wkim10]

Description

We have a few more components to make from the dashboard. In this case, we want you to create a component for an alert that volunteers will see on the dashboard when the admins send out a message to all the volunteers.

Testing

You can test the component by placing it in one of the page.tsx files. Not too much else to test, just make sure it looks good with different title/message lengths, etc.

Feel free to make a PR once you’re done with that.