* wasi-js-bindings: Add more details with unhandled exceptions. * relays: Always send host to relay to allow best redirection. * wassh: Fix async issue with Direct Sockets. * connect: Add icons like nassh.html. * prefs: Save & restore nasftp settings. * prefs: Convert importPreferences to async. * prefs: Convert exportPreferences to promises. * wassh: Increase opt-in to 5% of runs on Linux & CrOS. * prefs: Disable spellcheck & autocomplete in textfields.