Regenerate Thumbs

[xmatthewx]

Service went down about two weeks ago (#194). Run script to generate missing thumbs.

[xmatthewx]

We could run script on projects starting at id = 50000. That might miss a few projects that were edited, but will catch on the newly made ones lacking any thumb.

[xmatthewx]

I don't think anything has changed that would impact the script: https://github.com/mozilla/api.webmaker.org/blob/develop/scripts/regenerate_thumbnails.js

[cadecairos]

running this now, regenerating thumbs for ~6000 projects

[xmatthewx]

🏁 🏃 💨

[xmatthewx]

done!