'Vote MOTM' link on the forum template needs an update

Minor issue…

On the forum template, the ‘Vote MOTM’ in the top menu points to https://www.sfcu.com.au/player-of-the-season-2018-19, which is a dead link. It should probably be updated to the link for the 2020-21 season (or maybe remove the season from the path entirely to reduce future maintenance).