Renaming discourse_voting to topic_voting since there are two forms of voting in Discourse - posts and topics.
This PR also moves a OnceOff into a post migration. The post migration will be executed, but should ideally be a no-op. This allows us to not have to maintain the OnceOff as it had to be modified before with a previous migration. I considered removing this file altogether, but I don't think there is anything negative from just converting it into a migration, and it might be useful in the unlikely scenario that a forum from the past has never ran the OnceOff before.
We are trying to avoid custom tables. Changes:
CategoryCustomField -> DiscourseVoting::CategorySetting # contains infromation if voting is enabled for category
UserCustomField -> DiscourseVoting::Vote # user's votes
TopicCustomField -> DiscourseVoting::VoteCounter # cache count for topics
Natalie Tay
David Taylor
Jarek Radosz
Krzysztof Kotlarek
Penar Musaraj
Vinoth Kannan