analysis container creates settings and the settings items are created more nicely
also removed use of localized strings because that can be done separately
The explicit detach call was removed from `updateBeatmapSet`, causing
this to occur. We could optionally add it back (it will be a noop in all
cases though).
Noticed in passing.
```
Exit code is 134 (Unhandled exception. System.NullReferenceException:
Object reference not set to an instance of an object.
at osu.Game.OsuGameBase.onExceptionThrown(Exception ex) in
/Users/dean/Projects/osu/osu.Game/OsuGameBase.cs:line 695
at osu.Framework.Platform.GameHost.abortExecutionFromException(Object
sender, Exception exception, Boolean isTerminating)
at osu.Framework.Platform.GameHost.unobservedExceptionHandler(Object
sender, UnobservedTaskExceptionEventArgs args)
at System.Threading.Tasks.TaskExceptionHolder.Finalize())
```