Task Manager; On small devices, "Visualisation" tab is largely unusable

When using the Task Manager on a small device (not recommended), the "Visualisation" tab (available for many folder types) was largely unusable.

The following refinements have been made when a small screen is detected:

• Chart titles are removed
• The legend is moved to a vertical scrollable area below the chart
• The hamburger menu in the top right is removed

NOTE: The aspect ratio of the area available to the chart will significantly affect how it displays, i.e., it is much better in a portrait ratio.