Allow generated assets to show in development mode

In development, we mount our working directory over the one in the
container, meaning that generated assets (like the stats graphs) aren't
accessible. Rather than rebuild them into our working directory, this
adds the version collected during the container build as a last-resort
place to serve them from.

We're only setting this in development mode to avoid having
`collectstatic` (which we run in `live` mode) try to collect assets
from its own target directory.

website/configs/development/settings.py

@@ -10,3 +10,7 @@
     from local_settings import *
 except ImportError:
     pass
+
+STATICFILES_DIRS += [
+    "/home/spacelog/assets/website"
+]