grant: migrate from v8

[sdip15fa]

Migrate the /grant command from v8.

Todo

- [ ] check if level is changed: https://github.com/TheBastionBot/Bastion/blob/main/src/listeners/messageCreate.ts#L59 - [ ] check if level is changed for all users

[atlanna[bot]]

Thank you for opening this pull request. A maintainer will get by as soon as practical to review the changes.

[sdip15fa]

I renamed to /give but not /profile give since there is an option in the command to give xp / coins to everyone.

[atlanna[bot]]

If you think this was a mistake, feel free to reopen this pull request.