This installs as the last viewable file type, so it just becomes a
fall-through for all file extensions/types and attempts to view them
using the Archive class.
From Rob Swindell to Git commit to main/sbbs/master on Sat Jan 1 20:59:15 2022
Since we install archive.js as the viewer for '*' by default, we expect
it to be asked to list non-archive file-types frequently, so don't be
too alarmist about it.
From Rob Swindell (on Debian Linux) to Git commit to main/sbbs/master on Mon Feb 26 17:53:01 2024