116 create search bar UI component

[rhysmah]

Summary

Created a search bar. This will update search results dynamically when implemented into the relevant pages.

Added a clear button that removes all text a user has written.

Testing

Note: You cannot use the deploy link to test this, because there is no route to the test page.

1. Navigate to the frontend folder; open a terminal at this location
2. Type in npm run start:dev
3. Open Chrome and navigate to http://localhost:8080/test
4. Open Google Dev Tools; open the console
5. Type and delete; you should see real-time updates in the console
6. Type in something, then click the clear button; all text should disappear.