This adds several new columns to the directory view. It adds a last
modified timestamp, a logo for the type, human-readable file sizes, and
permissions. Several of these are configurable via the
config/settings.json file.
This fixes two bugs. The first had to do with the path library not
working in prod. That involved making a simple version of it that works
in the meantime. The other is rendering a different number of hooks
which required moving hooks outside of an if statement.
This mainly focuses on passing directory info to the front end. It isn't
a complete version of that, but it's enough to plan out some details of
the styling