fdo#80716 - Adding an icon to the Tools > Options menu entry

Change-Id: I6f379518fc41a2eba2d002c52324f781926fe490
Reviewed-on: https://gerrit.libreoffice.org/12232
Reviewed-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>
Tested-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>