Kibana version: 7.6

Describe the bug:

There is no default error handling inside

So visualisations which are using it directly might be missing error handling (previously it was notification service snackbar).

Need to rethink error handling API of expression service to be able to use notification service by default from within render.ts

Reproduce:

1. Go to vertical bar chart visualisation
2. In advanced settings put valid json, e.g. {"a":false}
3. Nothing happens

Expected:
In 7.5.0 there is an error: