Fix playwright mental model, don't make me psycho, thanks (#5680)

* Fix flakey tests with new toolbar.exitSketch

* tsc && lint && fmt

* Disable pw electron thing again

* Unfrig Playwright-Electron a ton; fix another ton of flakes.

* More deflaky

* Fix a ton of tests and playwright related hell

* Run jess's magic incantation to build rust kcl things

* yarn tsc

* yarn lint

* yarn fmt

* Remove double logs

* Revert to old settings spreads momentarily

* Expect error *in the fixtureSetup*, does not circumvent typechecking for regular usage

* Fix unit tests

src/lib/singletons.ts

@@ -10,9 +10,15 @@ export const codeManager = new CodeManager()
 
 export const engineCommandManager = new EngineCommandManager()
 
+declare global {
+  interface Window {
+    editorManager: EditorManager
+    engineCommandManager: EngineCommandManager
+  }
+}
+
 // Accessible for tests mostly
-// @ts-ignore
-window.tearDown = engineCommandManager.tearDown
+window.engineCommandManager = engineCommandManager
 
 // This needs to be after codeManager is created.
 export const kclManager = new KclManager(engineCommandManager)
@@ -23,12 +29,6 @@ engineCommandManager.camControlsCameraChange = sceneInfra.onCameraChange
 
 export const sceneEntitiesManager = new SceneEntities(engineCommandManager)
 
-declare global {
-  interface Window {
-    editorManager: EditorManager
-  }
-}
-
 // This needs to be after sceneInfra and engineCommandManager are is created.
 export const editorManager = new EditorManager()