Lots of small fixes and cleanups:
- only render something when there is a compliment
- cleanup naming
- use es6 notations
- use fetch instead of XMLHttpRequest in compliments
Co-authored-by: veeck <michael@veeck.de>
Co-authored-by: Karsten Hassel <hassel@gmx.de>
When trying to debug why the tests broke for
https://github.com/MichMich/MagicMirror/pull/2946 I found that the tests
does not wait for the app to start and close. So if the startup isn't
blocking that would fail.
So I added a callback for `close()` too and converted them to promises
for the `startApplication()` and `stopApplication()` and updated all the
e2e tests to await both. Will try to refactor all these callbacks to
promises in a later PR.
