Highlight: apply disable/enable the highlight status for all groups.

The highlight feature is provided for global usage (it means,
that disabling highlighting will turn off it for ALL parts
in ALL groups). This patch add management the highlight
feature status for cases when the highlight was enabled
when one group was active and disable in another group.

src/lib/enventor_smart.c

@@ -102,6 +102,8 @@ edit_view_sync_cb(void *data, Eina_Stringshare *state_name, double state_value,
      }
    if (edit_part_highlight_get(pd->ed))
      view_part_highlight_set(VIEW_DATA, part_name);
+   else
+     view_part_highlight_set(VIEW_DATA, NULL);
 
    if (!state_name)
      {