Fix cursor lag in canvases on Windows.

Fixes: lp:1831541
* https://bugs.launchpad.net/kicad/+bug/1831541

common/tool/tool_manager.cpp

@@ -966,7 +966,7 @@ void TOOL_MANAGER::UpdateUI( const TOOL_EVENT& aEvent )
     {
         frame->UpdateStatusBar();
 
-        if( !aEvent.IsMotion() )
+        if( !aEvent.IsMouseAction() )
             frame->SyncToolbars();
     }
 }

include/tool/tool_event.h

@@ -298,6 +298,11 @@ public:
         return m_actions == TA_MOUSE_MOTION;
     }
 
+    bool IsMouseAction() const
+    {
+        return m_actions && TA_MOUSE;
+    }
+
     bool IsCancel() const
     {
         return m_actions == TA_CANCEL_TOOL;