Warp display when selecting schematic items

When selecting items where the reference point is off-screen, GTK
would default the cursor to jump to the bottom of the screen.

Fixes: lp:1838843
* https://bugs.launchpad.net/kicad/+bug/1838843

eeschema/tools/sch_move_tool.cpp

@@ -298,7 +298,7 @@ int SCH_MOVE_TOOL::Main( const TOOL_EVENT& aEvent )
                     else
                         m_anchorPos = sch_item->GetPosition();
 
-                    getViewControls()->WarpCursor( *m_anchorPos );
+                    getViewControls()->WarpCursor( *m_anchorPos, true, true );
                     m_cursor = *m_anchorPos;
                 }
                 // ...otherwise modify items with regard to the grid-snapped cursor position