[docs] For ingress value ingressClass is incorrect correct is ingressClassName

[rishangbhavsar]

The value for defining ingress class in the documentation is not correct

https://www.devspace.sh/component-chart/docs/configuration/ingress#ingressclass

[zerbitx]

Thanks for the report. PRs are welcome and there seems to be one that's been abandoned here if you're looking for a place to start.