[KCM/Component] filemanager: make dolphin the default filemananger

Authored by meven on Jan 2 2020, 8:31 AM.

Description

[KCM/Component] filemanager: make dolphin the default filemananger

Reviewers: ervin, Plasma

Reviewed By: ervin

Subscribers: plasma-devel

Tags: Plasma

Differential Revision: https://phabricator.kde.org/D26324