Added qml for HIG page about inlinemessages.
Summary:
Added qml files to create screen shoots for the HIG page about inlinemessages.
https://hig.kde.org/components/assistance/inline.html
Code cleanup in inlinemessage qml files.
Removed broken Message4.qml
Reviewers: hein, mart
Reviewed By: mart
Tags: KDE Human Interface Guidelines
Differential Revision: https://phabricator.kde.org/D14506