AceEditor mode bug

[ColdFire87]

Hi,

I'm using minikube and I've deployed kubeless-ui via the k8s.yml file.
I am getting the service url via minikube service -n kubeless ui --url which gives me http://192.168.99.100:30113.
I am using Chrome Version 69.0.3497.100 (Official Build) (64-bit) on Windows 7 x64.
The bug also occurs on Firefox 62.0.3 (64-bit) so I don't think it's a browser specific bug.

Something goes wrong in the editor react component and the editor does not have syntax highlighting.
The chain of events starts in src/components/Editor/Editor.js at line 145 in render(), where the mode is computed for the AceEditor 3rd party component.

-> render() -> runtimeToMode() -> RuntimeHelper.runtimeToLanguage() ->
-> await this.getAllRuntimes() -> ... start returning

Somewhere along the way this fails because a Promise is not handled properly. Because of that the
browser issues a request to http://192.168.99.100:30113/mode-[object%20Promise].js which
of course fails.

I think you need an async/await pair either in runtimeToMode() or render() or both :).

In let mode = this.runtimeToMode(), mode ends up to be a Promise object, not the resolved result.

I wanted to run the app locally but I'm on Windows and node-sass does not support it.