Search bar magnifying glass is not clickable to initiate a search

[meagan13]

Describe the bug
The search bar magnifying glass looks like it should be a button that you can click, but it's actually just an image

To Reproduce
Steps to reproduce the behavior:

1. Go to LearnGrove.go
2. Click the magnifying glass icon
3. Nothing happens

Expected behavior
When you click the magnifying glass you expect it to trigger a search. The only way to trigger the search seems to be to hit enter on a desktop or mobile keyboard.

• I am willing to submit a pull request for this issue.