panel: have property-view occupy much less space by default

The initially more important part of the panel is clearly the task structure.
For longer tasks, the empty properties-view adds a scrollbar to the task when none would be needed.

Author: v4hn

visualization/motion_planning_tasks/src/task_panel.cpp

@@ -260,6 +260,9 @@ TaskView::TaskView(moveit_rviz_plugin::TaskPanel* parent, rviz::Property* root)
   : SubPanel(parent), d_ptr(new TaskViewPrivate(this)) {
 	Q_D(TaskView);
 
+	d_ptr->tasks_property_splitter->setStretchFactor(0, 3);
+	d_ptr->tasks_property_splitter->setStretchFactor(1, 1);
+
 	// connect signals
 	connect(d->actionRemoveTaskTreeRows, SIGNAL(triggered()), this, SLOT(removeSelectedStages()));
 	connect(d->actionAddLocalTask, SIGNAL(triggered()), this, SLOT(addTask()));