$assistant.fsAppearance / neo imp

@turnop fsAppearance is still a bit inconsistent here.

• assistantEvents.tw sets it as fsAppearance = "neo-imperialist"
• assistantOptions.tw sets it as fsAppearance = "neoimperialist"
• and the doc in assistant.d.ts sees it as neo imperialist.

I don't know which one is authoritative or I'd fix it myself, sorry. :(

edit:

• assistantAppearance.js is looking for neoimperialist which doesn't match the doc, and the errors caught my attention.

edit2:

• fsDevelopments.js is neo imperialist.
• futureSociety.tw is neo-imperialist.