Started work on a new basic frontend, with some magic code from
@tomhodgins (Tom Hodgins) for templating and processing data, which was
the primary purpose for considering a full-fledged JavaScript
framework. Fairly simple right now, with minimal "bling", and seems
"functional enough". Might need to consider options for using less or
no JS down the line if there is demand.
As part of this frontend, actually implemented route logic for fetching
a sorted list of providers (might be worth investigating whether
storing this final result in memory is worth the performance to memory
trade-off).
Also fixed a bug where adding "/" to the end of a provider name without
a file path would result in a 404. This was addressed with some Regex
filtering on the path that should be able to handle that matching.
