Improve JKube user experience

Currently, the JKube repo has ten open issues with the label ‘UX’. From a user perspective, these issues unnecessarily complicate trivial tasks like OpenShift console login or finding what a user needs in JKube docs. In many cases, our logs do not give enough information and hints like ‘what went wrong’, making it hard for the users to find fixes. As a mature plugin catered towards developers, we must work on more helpful logging, showing hints and giving the users an overall better experience. The JKube website needs work, and we need to improve quickstart guides to help new developers getting started with our plugin. These measures will definitely improve JKube’s adoption, and thus are of utmost importance.