fix: only ignore MacOS IME input
fix: only ignore MacOS IME input

ignoring Android causes issues with GBoard, other platforms/devices seem to function fine with or
without ignoring, but if we don't ignore desktop Mac IME then we swallow space/tab completion of
kanji if there is an english option in the completion list (IE: type 'ha' and HA is in the
completions)

fixes #82

WaniKani/WanaKana,WaniKani/WanaKana