[taskpanel] Add option of an always visible bottom panel with task manager/dock
So basically very much like on Plasma desktop. Ability to pin apps, an option to set maximum amount of icons that can populate the bar but also an option (just like with task manager) for task manager entries to become progressively narrower in order to accommodate more apps. Maybe even an option for two rows (again, as in task manager on Plasma desktop)? Maybe make the panel scrollable/draggable to the left/right so that unpinned (but open) apps that don't fit into visible width are still reachable through that task manager.
Given that many people use only few apps, one could pin those most important and it would greatly ease up switching between those. If there are more open apps than can practically fit into panel, they can all always be found in the already present app switcher.