json requests are made multiple times

[dlamkins]

Currently requests to /modules/ appear to spawn multiple requests to our external json blobs. The state information is triggering the useEffect when I do not expect it to. I currently am retriggering it because there were issues with loading the page when navigating between /modules/ and /modules/?namespace= since the page itself wasn't actually reloading.

Simply a lack of React experience on my part here to determine the best path forward.