added the arrow_forward svg icon to the theme.php
added the arrow_forward svg icon to the theme.php

chaveiro/emoncms,emoncms/emoncms,emoncms/emoncms,inverse/emoncms,chaveiro/emoncms,inverse/emoncms,emoncms/emoncms,emoncms/emoncms,inverse/emoncms,chaveiro/emoncms,emoncms/emoncms,chaveiro/emoncms,inverse/emoncms