fix(accountImagesViewListItem): 92 Image usage shows N/A when RHEL is true and seconds is nonzero

What's included

A fix for issue #92 (closed) Image usage shows N/A when RHEL is true and seconds is nonzero

How to test

1. Look at an account with an image that's not detected as rhel.
2. Flag the image as RHEL
3. Note that the Image Hours for RHEL is not N/A

Example