Search page - progress bar

[marcellmueller]

Describe the task
Add a loading/progress bar to the search page just like bcparks uses. This will especially improve user experience on slow connections.
https://bcparks.ca/find-a-park/

To get a better look of it's functionality open up dev tools in chrome -> network tab -> throttling -> choose fast or slow 3g and reload the page

uses the react bootstrap progress bar:
import ProgressBar from "react-bootstrap/ProgressBar";

• Progress bar works the same as bcparks
• The results (ie 52 results) at the top of the search list is replaced with Searching.... same as bcparks search page while loading