Cached values in LocalStorage are too hard to update

[Jason Boyer]

All current versions of Evergreen are effected.

The more cached the better in general, but using LocalStorage to store them can make it significantly annoying to try to update a cached value. As an example, when loading the fix for bug 1718782 onto a server that has previously been used the Srce fixed field still won't appear unless you either purge all LocalStorage or manually remove the keys beginning with FF.

Obviously some things need to be in LocalStorage like the registered workstations, last used workstation, etc. but things that are db backed, even if they don't change often, may be better kept in SessionStorage so the highest hurdle to reloading them is restarting the browser.