Opening / closing the submissions

[tooobiiii]

Is your feature request related to a problem?

Currently you cant really say when a submission round starts / ends. So people can submit whenever they want

Describe the solution you'd like.

Something like /oba checkmeout open/close would be cool so admins can say now we start a competition for prettiest island. They'll have 1 week to submit until the admins close submissions again so people cant submit new ones as admins are evaluating / as there is no competition

Describe alternatives you've considered.

Considered switching the permission for the command on or off which is annoying

Agreements

• I have searched for and ensured there isn't already an open issue regarding this.
• I have ensured the feature I'm requesting isn't already in the latest supported BentoBox build or Addons.

Other

No response