QtWebEngine doesn't auto-zoom to fit as QtWebKit did, so I tried to replicate that using zoomFactor.
Given the security implications and given that dict plasmoid uses QtWebEngine also, this could go into 5.12.
* Navigated a couple of pages
* It remembered the last visited page when plasma is restarted
* Scrolling with mouse wheel now works
* Context menus are using QQC plasma style
{F5670542}