Add easier access to changelog for js-controller udpate

[Feuer-sturm]

Is your feature request related to a problem? Please describe. If a new version of js-controller available it is not easy to find the real changes :-) You need at minimum 3 clicks to get to the changelog.

Issues based on this discussion in forum: https://forum.iobroker.net/post/912301

Describe the solution you'd like To get an easier access to the changelog please add e.g. a link to the text or a small button to directly jump to the changelog