Wifi connection editor: unnecessary apply/cancel buttons
We currently have apply/cancel buttons on the main view, even though there are no controls there that require it (previously with the notebook it was needed, since you could edit strings without opening a sub-view).
Now that all strings, IP addresses etc. are edited on sub-views, and there are only switches on the main view we can have apply buttons only on the relevant sub-views, and back/close buttons everywhere else.