Make commands disable, not unregister, based on their machineActor (#5070)

* Make "Find and select command" global to commandBarMachine

* Make commands not removed based on their actor state, only disabled

* Sort commands better in CommandComboBox

* Break out sort logic, add a few unit tests

* Fix missed name change

* Needed to make one more change from source branch:
since `optionsFromContext` now only gets fired once, I/O-based options need to use the `options` config instead.

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Co-authored-by: 49fl <ircsurfer33@gmail.com>

src/components/CommandBar/CommandBar.tsx

@@ -22,6 +22,7 @@ export const CommandBar = () => {
 
   // Close the command bar when navigating
   useEffect(() => {
+    if (commandBarState.matches('Closed')) return
     commandBarSend({ type: 'Close' })
   }, [pathname])