Follow up: Stream Idle PR (#6238)

* Use a dropdown for stream idle setting

* Add support for undefined values in dropdowns

* Move cache bust to the beginning of engine open for reconnections

* yarn tsc

* Don't setup model feature highlighters until the connection is ready

* Wait 2s to give engine time to serve video, then listen for modeling commands

* Undo teardown

* yarn fmt

* Fix circular module dependency; fmt & lint & tsc

* Fix editor-test waiting for 2 instead of 1

* Increment another 2 numbers ...

---------

Co-authored-by: Pierre Jacquier <pierrejacquier39@gmail.com>

e2e/playwright/editor-tests.spec.ts

@@ -82,7 +82,7 @@ sketch001 = startSketchOn(XY)
       .poll(() =>
         page.locator('[data-receive-command-type="scene_clear_all"]').count()
       )
-      .toBe(1)
+      .toBe(2)
     await expect
       .poll(() => page.locator('[data-message-type="execution-done"]').count())
       .toBe(2)
@@ -106,7 +106,7 @@ sketch001 = startSketchOn(XY)
     ).toHaveCount(3)
     await expect(
       page.locator('[data-receive-command-type="scene_clear_all"]')
-    ).toHaveCount(1)
+    ).toHaveCount(2)
   })
 
   test('ensure we use the cache, and do not clear on append', async ({
@@ -133,7 +133,7 @@ sketch001 = startSketchOn(XY)
     await u.openDebugPanel()
     await expect(
       page.locator('[data-receive-command-type="scene_clear_all"]')
-    ).toHaveCount(1)
+    ).toHaveCount(2)
     await expect(
       page.locator('[data-message-type="execution-done"]')
     ).toHaveCount(2)
@@ -161,7 +161,7 @@ sketch001 = startSketchOn(XY)
     ).toHaveCount(3)
     await expect(
       page.locator('[data-receive-command-type="scene_clear_all"]')
-    ).toHaveCount(1)
+    ).toHaveCount(2)
   })
 
   test('if you click the format button it formats your code', async ({