fix(windows): start Keyman after setup only if not running
fix(windows): start Keyman after setup only if not running

Fixes #4520.

Start Keyman after Setup finishes only if Keyman is not already running.

The pattern in this code change is found in a few places. It would be
nice to centralise that in a unit somewhere but I don't want to do
that much refactoring at this point in beta.

tavultesoft/keymanweb,tavultesoft/keymanweb