Force a realm refresh after migration
Force a realm refresh after migration

This really shouldn't have much effect as it will be run in the first
`Update` method and is probably a noop (we are already pointing to the
newest version due to just performing writes), but seems like a safe addition.

In general `Realm.Refresh()` only really does anything when there's multithreaded
usage and notifications to be sent.

ppy/osu,peppy/osu,NeoAdonis/osu,peppy/osu,ppy/osu,NeoAdonis/osu,ppy/osu,peppy/osu,NeoAdonis/osu