Resolve "[Eng] /competition/ replace Harvey balls with progress bar"

Step 1: What is changing in this MR?

This MR adds the progress bars (empty, 25%/basic , 50%/adequate , 75%/good , 100%/comprehensive) to our /nuxt-images folder.

This unblocks issues #1630 (closed) and #1691 (closed) where we are redoing those pages and replacing the harvey ball images with these progress bars.

Closes #1633 (closed)