Try to avoid the black screen again & improve error messages (#7327)

* Fix the black screen of death

* fmt

* make check

* Clean up

* Fix up zoom to fit

* Change how emulateNetworkConditions work

* Do NOT use browser's offline/online mechanisms

* Fix test

* Improve network error messages

* Signal offline when failed event comes in

* Don't use logic on components that only want a loader

* Remove unnecessary pause state transition

---------

Co-authored-by: jacebrowning <jacebrowning@gmail.com>

src/lib/selections.ts

@@ -703,7 +703,8 @@ export async function sendSelectEventToEngine(
     cmd_id: uuidv4(),
   })
   if (!res) {
-    return Promise.reject('no response')
+    console.warn('No response')
+    return undefined
   }
 
   if (isArray(res)) {