accept additional quick-jump hashes

[frasertweedale]

Accept all known-good quick-jump.min.js and quick-jump.css hashes. This function also partitions the check by path: only the js or css hash list is checked (whichever is relevant).

A modest refactor makes the code a bit easier to follow and makes it easy to add hash checks for oher paths in the future, if needed.

I have not tested this change. Hopefully I didn't goof up!