Clean up logic related to double-clicking Orca modifier
We currently handle double-clicking CapsLock and double-clicking Insert in two different ways. The code that does the handling is not in the same place. Some of the code seems to hint that it's handling things regardless of modifier, but in reality that's not the case. The logic should all live in the Orca Modifier Manager, and even if it has to handle things differently under the hood, that's an implementation detail that should not be exposed to the rest of the code.
Edited by Joanmarie Diggs