switched file logging to %LOCALAPPDATA%

Because we don't need to sync Shimmer logs between machines, this change switches it over to just use `%LOCALAPPDATA%`

Quick explanation:

> `Roaming` is the folder that would be synchronized with a server if you logged into a domain with a roaming profile (enabling you to log into any computer in a domain and access your favorites, documents, etc. Firefox stores its information here, so you could even have the same bookmarks between computers with a roaming profile.