Smoother, sharper virtual cursor for computer control

A sharper, snappier virtual cursor

• The cursor is now smaller and renders crisply — no more blur.
• Cursor movement is faster and tighter, so it no longer lags behind the actions.
• Fixed the cursor occasionally flying to a screen corner or taking a long detour to its target.
• The click ring now appears exactly at the click point, right when the cursor lands.
• Much less extra wobble when typing and settling on targets.