Add support for task reordering based on ordering history
Hi lads, this MR changes the behaviour for the task switcher:
- tasks are ordered following SortLastActivated sort mode: the rightmost task will be the last activated one, remaining tasks are sorted following their own opening history as well
- a new difference between swiping tasks or open them from task switcher has been introduced: switchingFromActiveTask
Depends: Plasma Mobile: Add a new sort mode and relative handler in TasksModel
Should close: [taskswitcher] Sort by opening history