Closes https://github.com/ppy/osu/issues/36830.
This is a regression from https://github.com/ppy/osu/pull/36681.
Due to the aforementioned pull request's changes, rotating an object
that could not scale on the X or Y axis (due to having that dimension
zero) would trigger `CanScale{X,Y}` to change as said rotated object's
width or height became not zero. This in turn would cause `SelectionBox`
to *fully recreate* all of its handles and buttons, *including* the
rotation handle that initiated the rotation operation, therefore
dropping the ongoing rotation operation completely and leaving the
editor in a half-broken state.
The suggested solution here is to recreate handles more granularly to
prevent this from happening. (I've probably not improved it as much as I
could have, but this is as far as I'm willing to go for now unless
review finds it unpalatable.)