When hovering over a file on the not-focus view panel, the information panel gets...

When hovering over a file on the not-focus view panel, the information panel gets updated

Test Plan:
 - In Dolphin with two views (split view) and with the information panels
 - Hover over a file on the not selected view
 - > the information panel show information about this file

No other changes in behavior

Reviewers: #dolphin, elvisangelaccio, ngraham

Reviewed By: #dolphin, ngraham

Subscribers: kfm-devel

Tags: #dolphin

Differential Revision: https://phabricator.kde.org/D19936